Constraints:
10 cups of peanut butter ⇒ x <u><</u> 10
12 cups of flour ⇒ y <u><</u> 12
dog bone treat : 3x + 2y ; price : 6 per tray
oatmeal dog treat : x + 4y ; price : 7 per tray
dog bone treat: 3(3x + 2y) = 9x + 6y
oatmeal dog treat: 1(x+4y) =<u> x + 4y</u>
10y+ 10y
3 x 6 =18
1 x 7 =<u> 7</u>
25
variable x is the peanut butter. It should not exceed the 10 cups of peanut butter.
variable y is the flour. It should not exceed the 12 cups of flour.
8n is 8 x n. If n is 2, then 8n is 8 x 2 which is 16! Hope that helps!
(5z-3)-(3z-8)
5z-3-3z+8
5z-3z+8-3
2z+5
A can be the correct option
hoping it is right