What are the steps to figure out what 10 times as much as 0.08

This is an example only to be used with numbers starting with 1. You look at how many zeros are in the number. However many that may be, that is how many times you move your number to the left.

Process:

Multiply 10 and 0.08

0.08
x 10


Since it's 10, you can use this simple trick:

Move the decimal or . to the right once

Which would leave you with 00.8

Since 0 is irrelevant, you can get rid of the zero in the 10s place.

0.8 or 0.80

The answer is c because you turn 17.5% into a decimal which gives you .175 then you times that by $361.35 which gives you 63.23625 but then you round that which gives you 63.24. then you at 63.24 pulse 361.35 and you round it which gives you $425