The amount she would have in her savings account is $20.
A coupon reduces the purchase price of an item. So, the amount Isabel would pay for the groceries is reduced by the value of the coupon. The amount of savings Isabel would have in her account is a function of the amount her coupons saves her.
Amount Isabel would save if she uses the coupon = amount she spent x discount
$200 x 10%
$200 x 0.1 = $20
To learn more about discounts, please check: https://brainly.com/question/25764815