Answer:
m ≥ 4.50
Step-by-step explanation:
Cost of the shirt = $15.50
you can use a $5 discount coupon if you spend at least $20
The question requires you to find how much more you need to spend to be able to use the $5 discount coupon
The shirt already cost $15.50
Total amount you need to spend = $20
Let the amount remaining = m
m ≥ $20 - 15.50
m ≥ $4.50
m greater than or equal to 4.50
m ≥ 4.50
This means you need to spend $4.50 in order to be able to use the $5 discount coupon
