Two brothers have a combined age of 21 years. Roger is twice as old as Bill was when Roger was as old as Bill is now. How old are they?

To get the other side of the lake, one can drive around it on lake road, go over the bridge or ride the ferry. how many different ways can one go across the lake and back?

Calculate the volume of the box 6.5 inches by 6 inches by 2 inches

On sundays at ice cream heaven you can choose two free toppings for your sundae the toppings are nuts hot fudge caramel and sprinkles how many different combinations of toppings can you order

What is the slope of a line perpendicular to the line 2x+4y=9?

You have $3.25 to buy bananas. Each banana costs $0.35. How many bananas can you buy?

Timmy has 4 toys he buys four more how many does he have

10. * - 7 = 11 Transfo

Y less then x squared minus 5x plus 4

What is the answer to this equation 3u-8=6u+7

75% of b is 12. What is b?