20x4=−15y7z⇔4x4=−3y7z i have to decided if this is a multiplicative cancellation property, additive cancellation property, zero factor property or a false statement and then identify the quantity that is added or multiplied by both sides but I keep getting the answer wrong.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?