A store sells memory cards for $25 each. a. The markup for each memory card is 25%. How much did the store pay for 50 memory cards?

The store paid __
.
Question 2
b. The store offers a discount when a customer buys two or more memory cards. A customer pays $47.50 for two memory cards. What is the percent of discount?
The percent of discount is __
Question 3
c. How much does a customer pay for three memory cards if the store increases the percent of discount in part (b) by 2%?
The customer pays __