3. What is always true when two whole numbers are subtracted?
A The answer is irrational.
B The answer is an integer.
C The answer is a whole number.
D The answer is not a real number.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?