To decrease your household water usage by 10% a month means that a household using 4000 gallons of water a month would cut down to using

3600

Step-by-step explanation:

0.1*4000=400

4000-400=3600 gallons

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.