They are always rational numbers
Answer:
A. The first 2 are equivalent expressions.
B. The last 2 are equavalent expressions.
When Oliver is considering the number of males, he typically assigns people to two categories: make or female, which makes the variable bi-variate : with two values.("bi" means "two).
If he's more inclusive, and adds the category of "other", it would be a categorical data - with 3 categories.
This depends on the necessary number of copies.
30 more cents. explanation: each nickel is 5 cents so 20x5= 100. each dime is 10 cents so 10x7=70. therefore trevor has 30 more cents.