The temperature dropped 2 F every hour for 7 hours. What was the total number of degrees the temperature changed in the 7 hours?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55