Given the function below, select all the equalities that are true. h(x) = x² + 3

O A. h(-8) = 3.5

O B. h(-3) = 7.5

O C. h(-2) = 1

O D. h(1) = 1.5

O E. h(2) = 5

OF. h(3) = 6

Nick estimated that 5/8+4/7 is about 2.explain how you know his estimate is not reasonable plz and fast i will give 50 points

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?