The slide at the playground is 12 feet tall. if the bottom of the slide is 15 feet from the base of the ladder, how long is the slide? ( pythagorean theorem)

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Which expression is not a polynomial?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10