An art supply store sells posters for $9 each and picture frames for $15 each. write an expression for the total cost of 6 posters and 6 frames. what is the total cost of 6 framed posters?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5