Simple easy math. someone just be my tutor. please.

(-1) + 4x + 2 + 2x + x

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

What are the domain and range of the function f(x)=2^x+1

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?