Working alone, Aliyah can pick forty bushels of apples in 14 hours. One day her friend Alberto helped her and it only took 5.48 hours. How long would it take Alberto to do it alone?

X+ y = 5 ; x - y =3 solve using linear combination

Aswimming pool measures 22ft by 12ft and is 4ft deep. if the pool is being filled at 2.5 cubic ft per minute, how long will it take to fill the pool?

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?