(a) What is 12.4% of 57.5?

You can simply use a calculator (or a piece of paper and pencil!) for this equation, which is nice since it’s easy once you know how :)

To find a percentage of a number, we’ll need to multiply.

12.4% x 57.5 = 7.13

Therefore 12.4 percent of 57.5 is equal to 7.13.

Hope this helps you! :)

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

b) well because you get well