If evelyn were to paint her living room alone, it would take 44 hours. her sister rachel could do the job in 55 hours. how many hours would it take them working together? express your answer as a fraction reduced to lowest terms, if needed.

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3