Which expression is equivalent to 34 ⋅ 3−9? A. 1 over 3 to the 13th power
B. 1 over 3 to the 5th power
C. 35
D. 313

Find cot x if sin x cot x csc x = √2

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.