B because it make the most sense
Answer:
These speed limits and price rates are known as unit rates because they give us the rate per unit -- in the speed limits, the unit is hours -- in the prices, the unit is pounds. ... The speed limit of 55 miles per hour is the same as the ratio 55 miles to 1 hour.
The answer is 800.
To find this, multiply 10 times 8 to find the number you are dividing. (80) now, multiply 80 by 10. (800)
1/10 of 800 is 80, which is ten times as much as 8.
16 I believe not 100% sure though