7. Alejandra goes shopping for some new clothes and then out to lunch with a friend. She spends $32.94 on some shirts, $15.89 for a belt and $19.99 each for two dresses that are on sale. For lunch, Alejandra has a salad that is $6.95, iced tea for $1.49 and dessert for $3.49. Alejandra pays 7% sales tax on both her shopping items and lunch. She tips her server 15%. How much has Alejandra spend all total for the day? explain your reasoning and no Link's . a. $121.52
b. $109.58
C. $107.79
d. $88.19

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2