Temperatures have been falling steadily at 5°f each day. what integer expresses the change in the temperature in degrees 7 days from today?

Ineed to find the answer to number 2

What is the measure of angle x? 37° 82° x°

Renee hiked for 6 3 /4 miles. after resting, renee hiked back along the same route for 5 1 /4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.