Marlye posted a story on her blog. on the first day there were 80 responses and on the second day there were 180 responses. what percent is the increase, 100, of the original number of responses, 80?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Which of the following is correct interpretation of the expression -4+13

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels