Which pair of angles are congruent? a) 1 and 8 eliminate b) 4 and 6 c) 5 and 6 d) 1 and 7

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

Can someone me do math because i am having a breakdown rn because i don’t get it

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?