Please help me understand how to do this!

x = -72

Step-by-step explanation:

Step 1: Get rid of the fraction by multiplying both sides by 9

-8x = 576

Step 2: Divide both sides by -8 to get x

x = -72

x = -72

Step-by-step explanation:

-8x/9 = 64

Multiply each side by -9/8

-8x/9  * -9/8 = 64 *-9/8

x = -72

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.