Which expressions are equal to -6z+(-6.5)+1.5z+7y-2.5?

Select all that apply.

A. 7y+(-4.5z)-6.5

B. -9+7y+(-4.5z)

C. -4.5z+7y-9

D. -9+7y+4.5z

E. 7y-9-4.5z

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank