(1) A cell phone company has a basic monthly plan of $30 plus $0.15 for any ...
500. Before receiving his statement, John saw he was charged a total of $38.10. Write and
solve an equation to determine how many minutes he must have used during the month. Justify
your steps with number properties. Be sure to check your answer.

Step-by-step explanation:

Monthly bill $40.00

Minutes over 700 $.45/min

Total bill $48.10

Amount for extra minutes = $48.10 - $40.00 = $8.10

$8.10/x min = $ .45/1 min

(.45) (x) = (8.10) (1)

x = 8.10/.45

x = 18.78          Round off to nearest minute = 19 min

x = (Bill amount - Monthly plan)/(45/100) [round off to nearest whole number]

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5

d

step-by-step explanation: