State the four major types of biological molecules that make up the cell membrane.  Describe a function of each in the cell membrane. (4 points)

Based on its location on the periodic table, barium (Ba), has what ion charge?

Calcium phosphate is the primary ingredient in calcium supplements.   The formula is Ca3(PO4)2.  The charge of the cation and anion are:

The formula for calcium oxide is:

The formula for copper (I) sulfate:

Sodium nitrite is used to cure meats.  The formula for sodium nitrite is:

Organisms that use CO2  as carbon source are called ________.

Find the slope and the y-intercept of the line.7x + 9y =62

Solve and graph the inequality. Give answer in interval notation.10x – 18>2(4x – 7)

Solve the problem.In a milling operation, the thickness of the aluminium foil that can be produced satisfies the inequality  What range of thicknesses corresponds to this inequality?