Pretty sure it would be the 1st, 2nd, and 4th shape.
Answer:
The answer is D if you forgot the 3 between the = sign and the + sign
Step-by-step explanation:
I just did 12 x p + 3 = 99
You have to do this because 12 times the amount of jerseys ordered (p) plus the 3 dollars of extra shipping cost. That equals 99.
The answer is 3n^2+1
9n^2 - 6n^2 = 3n^2
3n-3n=0
4-3=1