A population of 360 field mice live inside of a small area of forest near your house.240 of the mice are brown, and 120 of the mice are grey. What is the frequency of grey mice in this population

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?

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

Having a hard time understanding this question (see attachment).