Michelle buys a rug for $36 and sells it for $90. what was the value of her markup, expressed as a percent?

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Which system of linear inequalities is represented by the graph? !

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24