katie has 4 grapes candies and 3 cherries candies. The ratio of the number of grapes candies to the total number of candie is

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?