The table shows the derivation of cos(2x). Select the
correct reason for each step.

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7