Find x and y
still needing on this i tried another app but it didn't me at all.

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

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

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.