Pls Answer ASAP 69 Points Is this true or false? This graph represents a proportional relationship.

True or False

Multiply. write your answer in simplest form. 3/8 x 5/7

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.

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.