Find sin R.
a. sin R= 29/21
b. sin R= 21/20
c. sin R= 20/29
d. sin R= 21/29

Which one ? is the answer and how to find this answer

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?