Jerrod Dean starts the month with a balance on his credit card of $1,000. On the 10th day of the month, he purchases $200 in clothes with his credit card. On the 15th day of the month he makes a payment on his credit card of $500. The bank charges 1.5 percent interest per month using the adjusted balance method. What would Jerrod's finance charges be for the month

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis.b)reject the null hypothesis and conclude the mean is higher than $6,000 per day.c)reject the null hypothesis and conclude the mean is lower than $6,000 per day.d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day.expert answer