How much interest does $400 make in 5 years at 7% per annum?

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°