Meagan walked 4/10 mile to the park. she walked the same distance home. how much did she walk altogether? write in simplest form

Match each function with its rate of growth or decay

We just started the introduction into circles and i have no idea how to do this.

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