Use an identity to find the value of each expression:
sin^2 (π/9)+cos^2 (π/9)
sec^2 23°-tan^2 23°

Chanelle deposits $7,500 into the bank. she does not withdraw or deposit money for 6 years. she earns 6% interest during that time. what will the balance be when she is finally able to withdraw her money?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.