Give the answer and how to work it out!

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form

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