The owner of a bakery wanted to know what items in the store generated the most income. Based on last's month's salary, this is what she found:

5% bagels
8% brownies
12% cupcakes
15% donuts
60% bread

a. What item in the store brings in the most income?
b. What percent of the store’s income comes from selling brownies and cupcakes?
c. What percent of the store’s income comes from selling items other than bread?
d. If the store owner decided to eliminate cupcakes from her inventory, by what percent would her income be reduced?