Answer:
C. 6 weeks
Step-by-step explanation:
ur friend makes $11 per week
6 weeks • $11= $66
$66 + the $2.50 they already had= $68.50
after 6 weeks u have $33 earned (5.5•6)
add that to the amount u already had
$33+$35.50= $68.50
both amounts are the same at 6 weeks
hope this helps chu <3