1. Ethan ran food vendors stands at two different water parks.
Ethan wanted to compare the mean amount of money between
the two stands. Each stand has eight cash registers. He thinks
that there will be a greater variability in the indoor water park
as compared to the outdoor water park.
Indoor Water Park - Number of dollars in the registers:
55, 47, 36, 25, 50, 75, 63, 60
Outdoor Water Park - Number of dollars in the registers:
45, 49, 53, 20, 62, 50, 58, 70

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

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?