Do they have the word "dictionary" in the dictionary?

Blank × 10-3 is 2,000 times greater than 1.9 × 10-6. it is also blank times greater than 9.5 × 10-4.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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