I need help on this question please!! :))

Pls i’m dumb as heck i’ll give y’all so many points if that encourages you

If jm equals 5x -8 and lm equals 2x -6 which expression represents jl

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?