How would this be solved??

8. Theodora drove from Palm Desert to Solvang, a distance of 250 miles. She increased her speed by 10 mi/h for the 360 miles trip from Solvang to Santa Rosa. If the total trip took 11 h, what was her speed from Palm Desert to Solvang? a. (1 pt) Name the variable. b. (4 pts) What are the speed from Palm Desert to Solvang and the speed from Solvang to Santa Rosa in terms of the variable named in part a. c. (4 pts) What are the time it takes from Palm Desert to Solvang and the time it takes from Solvang to Santa Rosa. d. (6 pts) Set up and solve the equation