The county repairs three sections of a wrote the first section is 2.5 km long is that second section is 12 hectometers long and third section is 800 meters long what is the total length of the repaired section of the road?

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Ihave trouble finding the nth term of a linear sequence

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?