Solve this for me:
(-9) − 15

Solve 2x+y=3 x+y=5 in substitution method

!! 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?

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review