a. No, you do not have as much fruit as you need.
b. To find out how much more fruit you need, you can convert 4 pounds to ounces by multiplying 4 by 16 (since there are 16 ounces in a pound):
4 x 16 = 64
So you need a total of 64 ounces of fruit for the recipe. Since you only have 60 ounces, you need:
64 - 60 = 4 ounces more fruit.