Don't go by my answers pls

19)  ( )^2 =

20) - = -81

21)   = 16

Step-by-step explanation:

The only wrong ones are

19)  ( )^2 =

20) - = -81 ... negative is not inside a parenthesis that's why it is still negative

21) you can add another way is = 16

Everything else looks good.  Great job!

the answer is a

step-by-step explanation:

costs the what? what is the cost of the pants?

step-by-step explanation:

if it is $10, then the price is 14.

take 40% of the cost, and then add the cost.

40% of 10 = 4

4+10 = 14.