12. A taxicab charges $4.25 for the first mile and $1.50 for each additional mile.
Write a rule for describing the total rate r as a function of the total miles m.
What is the taxi rate for 12 miles?

Respuesta :

Answer:

r = 5.1666...

Step-by-step explanation:

4.25 + 1.5r = m

4.25 + 1.5r = 12

1.5r = 12 - 4.25

1.5r = 7.75

r = 7.75 ÷ 1.5

r = 5.1666...