Answers 3 and 4! since there is a negative power, that’s the only time the 0’s are added to the front :)
1. She got 9 questions wrong.
2. I believe the total is $44.80
the bag of rice weighs 4.5 pounds
Multiply 4.5 with 16 oz (as 1 lb = 16 oz)
4.5 x 16 = 72.
The bag of rice has 72 oz of rice inside.
The recipe only needs 60 oz of rice ∴ True, you will have enough, with 12 oz left over.
hope this helps