The answer is 70 pounds.
There are 16 ounces in a pound.
We have 4 pounds. So 16*4 = 64.
Then we have 3/8 of a pound. We want to know how many ounces that is. 16 ounces are in 1 pound. 3/8 as a decimal is 0.375.
0.375 * 16 = 6. So 3/8 of a pound = 6 ounces.
64 + 6 = 70
Hope this helps you! (:
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