working together Lisa and Wilbur can dig a 10 ft by 10ft hole in 3.33 hours. had he done it alone, it would have taken Wilbur 10 hours. find how long it would take Lisa to do it alone. A)4.99 B)6.07 C)5.9 D)5.81

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?