Question

C gives the cost, in dollars, of a cafeteria meal plan as a function of the number of meals

Answer 1

Answer:

9

Step-by-step explanation:

First, write the equation.

C(n) = 4 + 3n

We know that C(n) = 31, so we can substitute it.

31 = 4 + 3n

Subtract 4 from both sides to isolate the term with the variable.

27 = 3n

Divide both sides by 3 to get the variable by itself.

9 = n

Answer 2

Answer:

7

Step-by-step explanation:

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