Ralph earns $72,000 annually as an architect and is paid semimonthly. Alice also earns $72,000 but she

Question:

Ralph earns $72,000 annually as an architect and is paid semimonthly. Alice also earns $72,000 but she is paid biweekly.
a. How many more checks does Alice receive in a year when compared to Ralph?
b. What is the difference between Ralph's semimonthly salary and Alice's biweekly salary? Round to the nearest cent?