Dan surveyed the students in his middle school and found that the probability of a student owning a backpack, or a portable CD player is 0.7, the probability of owning a backpack is 0.6, and the probability of owning both is 0.5. Find his survey results for the probability of a student owning a portable CD player given these are overlapping events.

A. 0.4 C. 0.2
B. 0.6 D. 0.7

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

Which of the following represents the factorization of the trinomial below? x^2+7x-30