The sum of two numbers is 55 and the difference is 9. what are the numbers?

If 25% of y is 30, what is 60% of y?

Ineed the question and choices are in the

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)