I would say to check the 1st and 3rd
To figure this out you first find the difference between -18 and 60, which is 78 you then just divide, 78/4.5 which is approximately 17.55 mins or 17.6 rounded.

is a sphere centered at (0, 0, 1) with radius 1. We only need to know the radius; the volume is

where

, so the volume would be

.
Answer:
A) 
Step-by-step explanation:

Multiply:

Cancel off the common factor "w":

Cancel off the common factor "x":


Cancel off the common factor "9":

Answer: y=(3)/(2)x+5
Step-by-step explanation: