3 A cable provider offers internet and television service for one fixed price. If you already subscribe to their cell phone service they offer an additional 12% off the total
price of the services. If the discounted price of the services is $132, what is the price
of the services without the discount?

so mainly heres a sum up of the entire thing

"every thousand feet"

we have three thousand feet and each thousand feet there is a 1.8F drop so..

Do 1.8F minus each thousand feet until you reach three thousand

Now i'm not sure what the temperature will be on the ground though of 50.3 F, i apologize, hope this helped you!