Find the following.
2. {a, e, i, o, u} union {a, b, c, d, e}

3. {a, e, i, o, u} intersect {a, b, c, d, e}

4. |{a, e, i, o, u}|

49xy +34y - 72z. determine the degree of the polynomial

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?