The rate of change between point a and point b is to what is the rate of change between point c and point did d -2 - 1/2 1/2 or 2

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice