I need help with this problem

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?

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?