What is greater the sq units or number of units for the perimeter

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25