Which expression is equivalent to: −20+(−60)+(−90)? a: 20+60+90 b: −(20−60)+(−90) c: −20−(60−90) d: −20+(−90)+(−60)

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

A50% increase followed by 33 1/2% decrease