Tanya has several different ways she likes to walk home. one route takes 20 minutes, two of the routes take 30 minutes, and two take 40 minutes. tanya randomly chooses a route to walk home. what is the probability, to the nearest percent, that it will take her 30 min to walk home? 20% 33% 40% 67%

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

2x minus y equals 6, x plus y equals negative 3