Which side lengths represent the side of the right triangle

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.