Jeanette purchased a concert ticket on a web site. the original price of the ticket was $75. she used a coupon code to receive a 20% discount. the web site applied a 10% service fee to the discounted price. jeanette’s ticket was less than the original price by what percent?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

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?