Tim and Jim are working on a school project together. If he had to work by himself, it would take Tim 10 hours to complete the school project. If Jim worked alone, it would take him 15 hours.
Working together, how long will it take Tim and Jim to complete the school project together?

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.