For Shamar’s cellular phone service, he pays $58 per month for a phone plan plus $10.75 per gigabyte of data. If Shamar received a bill for $144, how many gigabytes did Shamar use this month?

Respuesta :

Answer:

P = 58 + 10.75d

144 = 58 + 10.75d

86 = 10.75d

86/10.75 = d

d = 8 gigabytes

Step-by-step explanation: