171/741An opaque bag contains 20 yellow marbles and 19 teal marbles. If two marbles are randomly chosen from the bag at the same time, find the probability that both marbles are teal. Round your answer to four decimal places

The answer is y = 140 + 25x

Luigi charges $140 no matter what, but the $25 per hour fee depends on the number of hours it takes to complete the project. So, if it takes Luigi 2 hours, for example, then he will charge $190:

y = 140 + 25(2)
y = 140 + 50
y = 190