Use a calculator to find an angle that has a tangent of 5/4 Round your answer to the nearest degree. Verify your answer by using a right triangle.
a. 510
b. 45°
C. 60°
d. 57°

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

How do i take any fraction and make it into a decimal or percentage?