Tiana looks at a map to find the best route from her house to her friend's house. the map has a scale of 4 centimeters = 3 miles. The distance of the route is 8 centimeters on the map

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?