Answer :
$75.25 = $4.25x + $20
subtract $20 from each side :
$55.25 = $4.25x
divide by $4.25 on each side :
x = 13
Answer : 13 weeks
subtract $20 from each side :
$55.25 = $4.25x
divide by $4.25 on each side :
x = 13
Answer : 13 weeks