Justin weighs 15 pounds less than Greg weighs. Half of Greg's weight is 75 pounds less than Justin's weight. How much does each of them weigh? A. Greg weighs 200 pounds and Justin weighs 185 pounds.
B. Greg weighs 190 pounds and Justin weighs 175 pounds.
C. Greg weighs 180 pounds and Justin weighs 165 pounds.
D. Greg weighs 170 pounds and Justin weighs 155 pounds.​

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)