Which expression is not equivalent to 8 · x · 2 · y?

16yx
8x + 2y
16xy

How do i work this problem out using the equation a=pe^rt

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

What would the rule be for the reflection of y=-3