Answer:
A = (cost per cup of coffee * number of cups) + balance
$15
Step-by-step explanation:
Given that :
Cost per cup of coffee = $1.50
Number of cups purchased = 4
Balance on card = $9
Let A = worth of gift card
A = (1.50 * 4) + 9
A = 6 + 9
A = $15
In the second step while opening the bracket, instead of 'a', there should be - 4a.
12 goes into 75 6 times with a remainder of 3. So the answer will be 6 remainder 3
15 to 21
junk to total