Answer:
A, C, D
Step-by-step explanation:
A. $5.60 per class
$196 divided by 35
B. $6.50 per class
$260 divided by 40
C. $5.00 per class
$250 divided by 50
D. $5.50 per class
$55 divided by 10
E. $7.60 per class
$342 divided by 45
Answer:
B
Step-by-step explanation:
Answer:
![(x+y+z)^2](https://tex.z-dn.net/?f=%28x%2By%2Bz%29%5E2)
Step-by-step explanation:
![x^2+2x(y+2)+(y+2)^2](https://tex.z-dn.net/?f=x%5E2%2B2x%28y%2B2%29%2B%28y%2B2%29%5E2)
there is a factoring rule where
![a^2+2ab+b^2=(a+b)^2](https://tex.z-dn.net/?f=a%5E2%2B2ab%2Bb%5E2%3D%28a%2Bb%29%5E2)
So,
a = x
b = y + z