Arestaurant has
5

pizza toppings to choose from. how many different
2

-topping pizzas are possible?

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Can someone tell me if this is perpendicular? !