If jane has 36 coins totaling $3.00, and the coins are all nickels and quarters, how many of each coin does she have?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?