Sergio dives into the water and it takes him 6 seconds to reach the bottom of a pool that is 8 feet deep. What is the best number to describe Sergio's rate of speed in feet per second?

 1.33

Step-by-step explanation:

Given : Time taken by Sergio to reach the bottom of a pool = 6 seconds

The depth of the bottom of the pool = 8 feet

We know that ,

Hence, the  best number to describe Sergio's rate of speed in feet per second is 1.33.

answer: 180

step-by-step explanation:

12-2=10

20-2=18

10x18=180