Find the unknown coordinate so the line through the points has a given slope. (2, Y), (4, 20); slope = 5

Can someone me and do the problem plz so i can understand it more better

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Five friends found a dollar on the ground and decided they each should get 1/5 of it. what amount of money will each friend get? $0.05 $0.20 $0.30 $0.80