Answer:
Step-by-step explanation:
9n-2
Answer:
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!
4 tens and 10 ones is 410
412 movies
Answer:
Yes
Step-by-step explanation: