Which of the following statements is a tautology and why is it that right answer

A. Integers are rational numbers.

B. Whole numbers are natural numbers.

C. Rational numbers are irrational.

D. Irrational numbers are integers.

Mary wants to fence in a rectangular run for her dogs. She has decided that the run will be 5 yards wide.

Three cards are taken, one after the other and without replacement, from a standard deck of 52 card. Find the probability that the first and third card are red?

If y=2x+1 were changed to y=1/2x+1, how would the graph of a new function compare with the first one?

How many times does 13 go into 100?

Express in scientific notation, 458,700 4,587 * 10 5 4,587 * 104 4,587 * 104 4,587 * 106

What is the value of x if g (x) = 16

In order to use an excerpt from a movie in a new television show, the television producer must pay the director of the movie $790 for the first 2 minutes of the excerpt and $130 per minute after that

Which expression is equivalent to x-2/y

The distance between City A and City B is 250 miles. A length of 1.7 feet represents this distance on a certain wall map. City C and City D are 3.74 feet apart on this map. What is the actual distance between City C and City D?

Write the product as a trinomial. (m - 5) (m + 2)