Ajar contains 24 pennies. the pennies are taken out and divided into 2 piles. if the larger pile contains twice as many pennies as the smaller one, how many pennies are in the larger pile?

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

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