Respuesta :

vanrouge

Answer:

500 - 20x = 220

Step-by-step explanation:

$500 is the base cost, and she withdraws $20 per week. $220 would be the final cost, so x represents the amount of weeks.

Answer:

500-20w=220

Step-by-step explanation:

w=14

it will take 14 weeks to have her balance at 220

-20w=220-500

-20w=-280

divide both sides by -20

w=14