Question

your cell phone plan cost $39.99 per month plus $.15 for each text message you send or receive you have at most $45 to spend on your cell phone bill what's the maximum number of text messages you can send or receive next month

Answer 1

X = text message you send or receive

39.99 + 0.15x ≤ 45
              0.15x ≤ 5.01
                    x ≤ 33

the maximum text message you send or receive is 33

39.99 + 0.15(33) = 44.94