Answer:
it is -x^3 + 7x^2 -2x if you meant subtract 2x^3 - 4x^2 But if you meant subtract. 2x^3 - 4x +2 then the answer is -x^3 +3x^2 +2x -2
Step-by-step explanation:
8 times 8 is the closest you can get to 71 without going over, since 8 times 9 would be 72.
You would put this into a fraction
so for the salad

and for the fruit

cross multiply and
1. salad: 20% = 115 students
2. Fruit: 24% = 138 students
Answer:
-12
Step-by-step explanation:
What you have to do is plug -4 into the function as a puzzle. So, replace all x with -4.
f(-4) = 7(-4) - 4(-4) = -28 + 16 = -12