Given the normally distributed variable X with mean 18 and standard deviation 2.5, find (a) P(X < 15); (b) the value of k such that P(X

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

Write the equations in logarithmic form 9^4=6,561

Change negative exponents to positive. then solve. round to four decimal places