1.	A person biking uphill travels 15 miles in 1hour. The same person biking downhill travels 15 miles in hour. Find this person's average speed.
		A.	20 mph	B.	15 mph
		C.	30 mph	D.	22.5 mph
		Hint
	2.	You leave your house traveling 60 mph. After you have driven 25 miles, your mother leaves the house traveling in the same direction. What speed must your mother travel to catch up to you 5 hours after she leaves?
		A.	55 mph	B.	65 mph
		C.	60 mph	D.	not possible
		Hint
	3.	At a candy shop, plain candy covered chocolate costs $2.95 per pound, while candy covered chocolate with almonds costs $4.95 per pound. How many pounds of plain candy covered chocolate should be mixed with 3 pounds of candy covered chocolate with almonds to obtain a mix that sells for $3.95 per pound?
		A.	3 pounds	B.	2 pounds
		C.	3.5 pounds	D.	2.5 pounds
		Hint
	4.	A chemistry experiment calls for a 25% solution of copper sulfate. Juanita has 20 milliliters of 15% solution. How many milliliters of 35% solution should she add to obtain the required 25% solution?
		A.	20 milliliters	B.	15 milliliters
		C.	23 milliliters	D.	17 milliliters
		Hint
	5.	Hakan has 50 milliliters of a 10% acid solution. How many milliliters of 45% acid solution should he add to create a 35% acid solution?
		A.	78 milliliters	B.	97 milliliters
		C.	100 milliliters	D.	125 milliliters
		Hint