Andre wants to buy a backpack. The normal price of a backpack is $40. He notices that a store that sells the backpack for is having a 30% off sale. What is the sale price of the backpack?

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

If np3 /nc2 = 6, find the value of n