Souveniers are sold at a rock concert. 3 hats, 2 tshirts and 1 jacket cost $140. 2 hats, 2 tshirts and 2 jackets cost $170. 1 hat, 3 tshirts and 2 jackets cost $180. How much does each item cost?

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

On a architect's drawing of a house, 1 inche representa 1.5

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.