My grades in science for the second semester have been 89, 96, and 93. I got a 72 on my exam. What will my semester average be?​

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.

The table above shows approximate conversions from gallons to liters. what is the value of x?

Look at attachment. has all info needed. need