Calculating the Time of a Trip

I need help understanding these problems. Just a little guidance and a push (or shove) in the right direction will really be appreciated.

From a parking lot, you want to walk to a house on the beach. The house is located 1500 feet down a paved path. The house is 500 feet from the path.

a. Along the path, you can walk 300 feet per minute, but in the sand on the beach you can only walk 200 feet per minute.i. How many feet per second can you walk on the path?

ii. How many feet per second can you walk on the beach.

There's how 6 more problems that I need help on, but I'm sure if I can figure out how to work these 2 out, I can understand the rest of them much easier. Thanks! (Nod)