David's phone bill each month is $30. He is also charged $0.10 per GB of data he uses. If his phone bill in july was $42, how many GB of data did he use in July?

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition? a) 6 b) 8 c) 14 d) 20

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?