It cost $3.45 to buy 3/4 lb of chopped walnuts. How much would it cost to purchase 7.5 of walnuts?

It would cost $8.63

It costs $34.5 to purchase 7.5 lb of walnuts.

Step-by-step explanation:

It costs $3.45 to buy 3/4 (0.75) lb of chopped walnuts. This is the ratio to be considered. In order to find the cost to purchase 7.5 lb of walnuts, we will use conversion fractions.

7.5 lb * ($3.45 / 0.75 lb) = $34.5

It costs $34.5 to purchase 7.5 lb of walnuts.