A submarine travels 19 miles in 1/2 hour. Write an equation to find out how long it will take the submarine to travel 57 miles at the same rate . Then find the time.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

If a is a nonzero real number then the reciprocal of a is

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x