Does anyone know how to do this i need

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 inverse of the function f(x) = 2x + 1?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two