The sum of two unknown numbers is equal to -34

Please write this into an equation! :)

Geometry answer picture question pls . reason and statements

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?