Answer
15 bottles cost $7.5
Step-by-step explanation
6 bottles of homemade lemonade costs $3
Let the cost of 15 bottles be x dollars.
6 bottles = 3 dollars
15 bottles = x dollars
We can write a mathematical relationship by cross multiplying
(6) (x) = (15) (3)
6x = 45
Divide both sides by 6
(6x/6) = (45/6)
x = $7.5
Hope this Helps!!!