Answer:
I believe the answer is 2.22 which is letter c
Step-by-step explanation:
You have $12, and need at least x more dollars to spend $30 total. So the inequality is 12 + x ≥ 30, where x is the number of dollars needed to get free delivery. To solve for x, subtract 12 from each side of the sign. x ≥ 30 - 12, x ≥ 18. You must spend at least 18 more dollars to qualify for free delivery.
Answer: -4x(4x - 15)
Step-by-step explanation:
f(x) =
+ 60x
y =
+ 60x
=> - (
- 60x)
=> -4x(4x - 15)