What is -1/5+ -2/3 in fraction form

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor