Plz help me easy 10 points

Me asap! what is the slope of this line? enter your answer in the box.

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

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?