A store pays $909 for a clarinet. The store marks up the price by 24%.What is the amount of the mark-up?

(-9,7), (6,2) write an equation in point-slope form of the line that passes through the given points, then write the equation in slope-intercept form

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?