Sumproduct Formula

I am working with Excel for a major fundraiser for our school and am wondering what I can do to retreive certain information without manually going through all data.

I need to know 1)all students that produced 15 flyers and the total amount of pledges, and 2)students that may not have produced 15 flyers BUT have a total pledge of $100 or greater. I would like this information to be transferred to another worksheet in the workbook by itself.

Is this possible? Thanks all for your help! I am slowly learning.

tmac