Determine if the three side lengths in each question form a triangle

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Caitlin had 402. in her bank account.she withdrew $15.each week to pay for swimming lesson. she now has $237.

Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take