It would be $7.50 because 4 ounces equals $1 so 30/4 =7.5
Answer: Associative property
Step-by-step explanation:
You can change the denominators so they are alike.

Not sure how there can be two possible answers unless you're mentioning the decimal form:
.775
Tell me if this helps!!
Your answer is 506.44.
multiply 662 x .10 now minus that answer from 662 to get 595.80
now multiply that by .15
now minus that by 595.80
gives you 506.43