Given sin A = - 9/√97 and that angle A is in Quadrant IV, find the exact value of sec A in simplest radical form using a rational denominator.

Which representation has a constant of variation of -2.5

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll