Well the increase is 132/120. Simplify by dividing 12 from the numerator and the denominator, you should get 11/10.
11/10 is also 110%
8x+2 it’s correct because it’s correct
You can also multiply the decimals by a multiple of 10 to turn them I to whole numbers. Just make sure you multiply them both by the same multiple of 10 and divide them back before you write your answer!
The square root of 45 is simplified to 3 root 5. Rounded in decimal form, 6.708
