PLEASE HELP PLEASSE I A BEGGGING YOU

For the function, f(x) = -5x 2, find f(-4).

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out