24x13=312
There are a total of 312 total ice cream cartons.
Answer:
-5-4-3-2-1 0 1 2 3 4 5
Step-by-step explanation:
Take into account, that in general, a cosine function of amplitude A, period T and vertical translation b, can be written as follow:

In the given case, you have:
A = 4
T = 3π/4
b = -3
By replacing you obtain:

Hence, the answer is:
f(x) = 4cos(8/3 x) - 3