2. if a, b are non-zero rational numbers, and c is a non-zero irrational number, what can we say about
?
o
it is an irrational number.
it is an integer.
ooo
it is a rational number.
it is a perfect square rational number.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)