Find the percent of increase from 88 to 99. Round to the nearest percent.

13%

Step-by-step explanation:

To find the percent increase,

Take the new amount and subtract the original amount

99-88 =11

Then divide by the original amount

11/88 =1/8

Change to a percent

1/8 =.125 = 12.5%  

Rounding to the nearest percent 13%

13%

Step-by-step explanation:

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

24

step-by-step explanation: