Omar is born weighing 8 pounds, and 3 ounces. The doctor says he should gain 5 ounces each week for 4 weeks. How much should omor weigh after the 4 weeks

Let's convert 8 pounds and 3 ounces, into all ounces.

So we know one pound = 16 ounces.

1 lb = 16 oz.

Now since Omar is 8 pounds + 3 ounces, we multiply 16 by 8, and add on the 3:

16 * 8 = 128

128 + 3 = 131

So Omar weights 131 ounces when he was born.

Now Omar has to gain 5 ounces each week, for 4 weeks. This means in total, he'll have to gain 5*4=20 ounces in 4 weeks.

Add them together:

131 + 20 = 151 oz OR 9 7/16 lb.