What you need to find, is 1/10 of 4500.
To do this, you need to divide 4500 by 10 (1/10). The answer to this is 450 (just take a zero off). Multiply by 1 (1/10) to get 450.
The answer is 450 square feet
[ ( |500,000-700,000| ) / 500,000 ] * 100 = 40%
So you first pay 2.75 to use the computer
then you have to pay for the internet which you used for 28 minutes
28 at 0.35 a minute is 9.8
so 2.75 for the computer plus 9.8 for the internet is
12.55
