How many 5-digit numbers are there in which three of the digits are 6, or two of the digits are 9 ?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

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?