Klaus was replacing the roof on his house. he used 420 nails to attach all the pieces. each pieces of wood needed 7 nails to hold it he used 40 pieces of wood. how many pieces were left?

Which fraction below is equivalent to 10/12?

Which expression gives you the distance between the points (5,1)and(9,-6)

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?