Answer:
look at the picture i have sent
1 pt; or 1 pint seems most reasonable here.

Step-by-step explanation:

This is the associative property. Basically if you move the parenthesis either to left or right you’ll still get the right answer. So 4 times 5 equals 20 and 20 times 3 equals 60. 3 x 4 equals 12 and 12 x 5 equals 60