An average bagel contains 30 mg of calcium and 2 mg of iron. One ounce of cream cheese contains 25 mg of calcium and 0.4 mg of iron. If Leyla wants to eat a combination of bagels and cream cheese that contains exactly 245 mg of calcium and 10 mg of iron, how much of each should she eat?

How many bagels does she need to eat?

How many ounces of cream cheese does she need?