Please answer the two word problems below. Please label each variable and show full work. Thank you.
WORD PROBLEM 1: Ryan and Kenneth mow lawns together. Ryan working alone could complete a particular job in 4.5 hours, and Kenneth working alone could complete it in 3.7 hours. How long does it take to complete the job when they work together?

WORD PROBLEM 2: Two groups of penguins are building an igloo. The two groups working together can finish the job in 3 days. The first group, if working alone, can build that same igloo 8 days quicker than the second group. How long would it take each group to build the igloo working alone?