Growth/#/test-player 100%
Teresa eats in a restaurant that charges 6% sales tax on the cost of a meal. Teresa decides to leave a tip that equals 18% of the cost of her
meal.
Which expression represents the total amount Teresa will pay for a meal, where x is the cost of her meal before the tax and tip?
O A x + x(0.06) + x(0.18)
OB. X+ (x +0.06) + (x +0.18)
OC. *+ (x -0.06) + (x -0.18)
OD. x+(1 + 0.06) + x (1 + 0.18)
E x + x (1 - 0.06) + x (1 -0.18)

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?