In which expression should the exponents be multiplied?

(53)−4
one third to the 4th times one third to the 7th
3 to the 7th over 3 to the 15th
45 ⋅ 42

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?

Y=4x^2+x-1 solve using quadratic formula

A(t)=728(1+0.04)^t how much money did aditya originally invest