Question

2 pounds of potatoes are taken out of the bag what weight does the scale show now

Answer 1

We can't tell how much it weighs we need more info about the question

Answer 2

you should aske them together in 1 quesiton (I am assuming the scale had 5 pounds before)

so 5-2=3 pounds
to ounces=3 times 16 since 16 oz pper ppound

3 times 16=48 oz