Which of the following relations is a function (-1, 1), (-1,0).(-1,-1)
(-1, 1), (-1, -1), (0, 0)
(0, -1), (1, -1), (2, 2)
(2, 1), (0, 0), (0, 1)

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Alocal hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on friday. there were 51 more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday? a local hamburger shop sold a combined total of hamburgers and cheeseburgers on friday. there were more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday?