Answer: In explanation
Step-by-step explanation:
1. 135 - 50x
2. $15
3. $0
I hope this helped!
The total number of calories for 18 cups of milk is 1620 calories.
If two cups of milk is 180 calories then divide 180/2 to find the unit rate.
Then multiply 90 by the number of cups (18) and then you get the total number of calories for that many drinks.