First you do 3.5z-2.7z= .8z then you divide .8 with -6, which gives you -7.5 so z= -7.5
Answer:
B: $12.00 per backpack gives the maximum revenue; the maximum revenue is $312.00.
Step-by-step explanation:
Answer:
z=3 because in the 2(z+3) is like (z+2)+(z+6)
X = 3 y = 4
so answer is 4