A mountain bike tire completes 20 revolution and travel 136ft . Rounded to the nearest inch , what so the diameter of the bike tire? Use 3.14 for (pi)

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

Witch represents the inverse of the function f(x)=1/4x-12