Question

Debbie is choosing from four different types of cakes to take to work for a coworker’ birthday. She decides
to buy vanilla-flavored cake with strawberry frosting. The regular price of cake is $24.75, and the cake is on
sale for 20% off of the regular price. She also has another coupon for 10% off, but cannot be used with any
other discount. Debbie has only a 20-dollar bill. Assuming that the cake is not taxed, which of the following
methods would help Debbie determine whether she has enough money to pay for the cake?

Answer 1

And the methods are?

Answer 2

A Round the cake price to $25. Apply the greater
discount (20%) to the cake price and subtract
from $25. If the difference is equal to or less
than $20, Debbie has enough money.
B Round the cake price to $20. Apply the lesser
discount (10%) to the cake price and subtract
from $20. If the difference is equal to or less
than $20, Debbie has enough money.
C Round the cake price to $25. Add the two
discounts and subtract the sum (30%) from the
cake price. If the total discount is equal to or less
than $20, Debbie has enough money.
D Round the cake price to $30. Add the two
discounts and apply the sum (30%) to the cake
price. Subtract the total discount from $20. If the
total discount is equal to or less than $20, Debbie
has enough money.

Answer 3

Since Debbie can't mix coupons, I'd say A.

Answer 4

thanks