You sell a total of 17 pieces of disposable and washable face masks. what is the answer

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

What is the value for this expression? 2e-5

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.)