Arbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. she wrote an equation to find the number of drinks she needs to sell to earn $100. 1.25x + 1.49 = 100 what error did barbara make in writing the equation?

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'