12 customers entered a store over the course of 4 minutes. At what rate were the customers entering the store in customers
per minute?

3 customers per minute

Step-by-step explanation: 12/4 is 12 customers and 4 is the minutes. We want to know the rate at 1 minute so you divided 12 by 4 and 4 by 4, which gives you 3/1 or 3 customers per minute.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3