Brandon and his band want to record a CD of their music. The recording studio charges $750.00 for the session and $3 for each CD. The studio requires that bands spend a minimum amount of $1200.

a) Write an equation for the cost of the CD’s in relation to the number of CD’s.

b) Write and solve an equation or inequality that can be used to determine the minimum number of CD’s they would need to buy if they only want to spend the minimum amount.

c) The band decides to buy 200 CD’s, how much money will they be spending? They are planning on selling them to recoup their expenses at the recording studio as well as make a little profit. What is a reasonable amount of money they should charge for each CD? At that price, how many CD’s will they have to sell to recoup their expenses?

d) If the band sells all the CD’s at that price, what is the total profit that the band will make (after expenses)?

Your

Listed below are time intervals (min) between eruptions of a geyser. assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. do not assume that the population standard deviations are equal. does it appear that the mean time interval has changed? is the conclusion affected by whether the significance level is 0.10 or 0.01? recent 78 90 90 79 57 101 62 87 71 87 81 84 57 80 74 103 62 past 88 89 93 94 65 85 85 92 87 91 89 91 follow the steps of hypothesis testing, including identifying the alternative and null hypothesis, calculating the test statistic, finding the p-value, and making a conclusions about the null hypothesis and a final conclusion that addresses the original claim. use a significance level of 0.10. is the conclusion affected by whether the significance level is 0.10 or 0.01? answer choices below: a) yes, the conclusion is affected by the significance level because h0 is rejected when the significance level is 0.01 but is not rejected when the significance level is 0.10. b) no, the conclusion is not affected by the significance level because h0 is not rejected regardless of whether a significance level of 0.10 or 0.01 is used. c) yes, the conclusion is affected by the significance level because h0 is rejected when the significance level is 0.10 but is not rejected when the significance level is 0.01. d) no, the conclusion is not affected by the significance level because h0 is rejected regardless of whether a significance level of 0.10 or 0.01 is used.