Round to the nearest whole number 8.36

we know that

To Round a number

a) Decide which is the last digit to keep

b) Leave it the same if the next digit is less than (this is called rounding down)

c) But increase it by   if the next digit is   or more (this is called rounding up)

In this problem we have

We want to keep the digit

The next digit is which is less than , so no change is needed to

therefore

the answer is

they charge the same amount at 20 minutes.

step-by-step explanation:

good luck on ur quiz test or homework. have a good day : )