The clinic nurse is reinforcing teaching with the parent of an 8-year-old child who was recently diagnosed with ringworm (tinea corporis). Which instruction should the nurse provide to the parent regarding the primary treatment for this condition?

What is the approximate area of triangle RST? A triangle labeled R, T, and S is shown. Points R and T form a short horizontal base labeled 64. From R, a long side extends upward to the right to point S, labeled 208. From T, another side extends upward to the right to meet S, labeled 156. The triangle is scalene, with the longest side being RS (208), followed by TS (156), and the shortest side RT (64).

Find the length of side g. A triangle with vertices labeled E, F, and G is shown. Vertex E is at the upper left, F is at the lower left, and G is to the right. The side from F to G is labeled e = 18. The angle at F measures 60°, and the angle at G measures 45°. The sides are drawn with straight black segments, forming a scalene triangle on a plain background.

The point (a,b) shown below represents which complex number?  A complex number plane is shown with the horizontal axis labeled “Real” and the vertical axis labeled “Imaginary.” The grid is marked with values from −5 to 5 on both axes. A red point appears in the fourth quadrant at approximately (3, −4). The point is labeled “(a, b)” in red text. Its position indicates a positive real part and a negative imaginary part.

What is the approximate measure of angle B on triangle ABC? A triangle labeled A, B, and C is shown. Points A and B are connected by a horizontal top side labeled 8 in. Point C is below between them, forming an inverted triangular shape. The side from A to C is labeled 4 in., and the side from C to B is labeled 6 in. The triangle is scalene, with all three sides having different lengths.

What is  for the graph shown? 

The point (a,b) shown below represents which complex number?  A complex number plane is shown with the horizontal axis labeled “Real” and the vertical axis labeled “Imaginary.” The grid is marked from −10 to 10 on the imaginary axis and from −5 to 5 on the real axis. A red point appears in the second quadrant at approximately (−2, 5). The point is labeled “(a, −b)” in red text. The location indicates a negative real part and a positive imaginary part.

What is the approximate measure of angle A on triangle ABC? A triangle labeled A, B, and C is shown. Points A and B are connected by a horizontal top side labeled 8 in. Point C is below between them, forming an inverted triangular shape. The side from A to C is labeled 4 in., and the side from C to B is labeled 6 in. The triangle is scalene, with all three sides having different lengths.

Find the measure of angle D. A triangle with vertices labeled R, A, and D is shown. Vertex R is on the left and D is on the right, connected by a horizontal base RD labeled 9. Vertex A is above the base, forming the top of the triangle. Side RA is labeled 7, and side AD is labeled 5. The triangle is scalene and drawn with straight black line segments on a plain background.

Find the measure of angle N.  A scalene triangle with vertices labeled F, U, and N is shown. Vertex F is on the left, U is at the upper right, and N is at the lower right. Side FU is labeled 2, and side FN is labeled 5. The angle at vertex F measures 86°. Side UN is drawn as a vertical segment connecting U and N. The triangle is formed by straight black line segments on a plain background.