Which of the following expressions is equivalent to xy^3?
(options in the pic)

You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Im so bad at fractions they are not my best math thing to work on