PLZ HELP!! WILL GIVE BRAINLIEST!! EVEN SOLVING ONE PROBLEM WOULD BE HELPFUL!!

A) All of the middle-school mathletes solve math problems at the same pace. Working together, six mathletes complete all of the summer homework in 22 hours. How many hours will the homework take if the number of mathletes increases by a factor of 4?

B) A cake mix contains sugar and flour. The mass of the sugar is 14 2/7% of the mass of the flour. What is the percent of flour in the cake mix?