Caleb took 24 photos at the zoo. 3/8 of his photos are of giraffes. How many of his photos are of giraffes?

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Which value of y will make the inequality y< -1 false?