1 point How many significant digits are in 6500 lb?

1 point Find the value of x for the given value of y.   2x + 3y = 6;  (  ,10).

1 point An 10 V automotive coil has 400 turns of wire in the primary circuit.  The secondary voltage is 8,000 V.  How many secondary turns are in the coil?  [Hint: The ratio of secondary voltage to primary voltage equals the ratio of secondary turns to primary turns.]

1 point Solve the equation and check.

1 point How many significant digits are in 70.02 m?

2 point Find the equation of the line through the given points.  [Hint: First, find the slope,

2 point Find the equation of the line with the given slope and y intercept. [Hint: ] m = (3/4),   b = 2

1 point How many hectares (ha) are contained in a rectangular field that measures 100 m by 90 m ? [Hint: 1 ha = 10,000 m2 ]

1 point Change 80 mi/h to km/s.  [Hint: 1 h = 60 min; 1 min = 60 s; 1 mi = 1.61 km]   Round your answer to the thousandth place.

1 point How many significant digits are in 59.83 m?