Write expressionjohn has x marbles. his brother has 3 more than john has. how many marbles does john's brother have?

Ineed in figuring out this problem.

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Which inequalities can be used to find the solution set of the following inequality? check all that apply. |2x – 5| (2x – 5) (2x + 5) –(2x – 5) –(2x + 5)