Answer:B
Step-by-step explanation:
Y = 10
x = -1
u might need to check it again
just to make sure
The amount of balls in a given layer can be found by squaring the layer it is in
4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16
add them up
1+4+9+16=30
30 in that pyramid
The length of the midsegment is 22
The correct answer is C. Aimee used the Associative and Commutative properties to put numbers that are easy to add next to each other.
