If t(x)=-x+3, then what is f(x)=(t*t)(x)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²