Answer: 10 ounces of Portabella Mushrooms are $2.50
The first thing we should do is divided the number of pounds we can purchase by the price of that you will pay. 8/2 is 4. This means that it is 4 dollars for a pound of Portabella Mushrooms.
Next we must divide 10 into 16, to figure out what percent 10 is of 16.
10/16 is 0.625 or 62.5% Since we are buying less than a pound, we know our answer will be less than 4 dollars. The last thing we must do is divide 62.5 and 4. 62.5% of 4 is 2.5. This means that 10 ounces of Portabella Mushrooms is $2.50
I hope this helps & and Good Luck <3 !!