An item is priced at $13.13. If the sales tax is 5%, what does the item cost including sales tax?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

How do you write a paragraph proof to prove that the corresponding angles shown are congruent