Use the diagram to complete the statement.
38
given ajkl, sin(38°) equals
o cos(38°).
o cos(52°).
o tan(38°).
o tan(52°).

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )