HELP! The function f is defined above. For what value of k, if any, is f continuous at x=-7

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided