Emergency! which expression is equivalent to 2(a+3) when a=3? a. 2(3) b. 5(3) c. 2(3)+3 d. 2(3)+6

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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.

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°