The selling price of an item is ​$360. It is marked down by ​%, but this sale price is still marked up from the cost of ​$270. Find the markup from cost to sale price.

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?