Question

The cost of star cost of a text is 0.45 each plus a 2.75 fee what’s the price of 15 texts?

Answer 1

13.5

Explanation:

Use the function

F(x)=0.45x+2.75

f(15)=0.45(15)+2.75

f(15)=6.75+2.75

f(15)=13.5