The sum of max's age (x) and his sister's age (y) is 8

Two vertices of a polygon are (7, −18) and (7, 18) . what is the length of this side of the polygon? enter your answer in the box. units

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

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?