Suppose that 30% of flies are black, and 70% are grey. one fly is chosen at random, what is the probability that the chosen fly is grey?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Find the area of the triangle shown 3 by 6