Answer: 45 ounces of cheddar
Explanation:
18 ounces of cheddar is used to make 32 four-ounce portions.
To make 1 four-ounce portion requires;
= 18/32
= 0.5625 ounces of cheddar
Making 1 eight-ounce portion should therefore be double that;
= 0.5625 * 2
= 1.125 ounces of cheddar
To make 40 ounces;
= 1.125 * 40
= 45 ounces of cheddar
