Which ordered pair is the solution to the system of equations?
{x+3y=−12 y=13x−6

Jim had 15 minutes to do 5 laps around his school what would his time be

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

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.