Heather paid $2,214.00 for a computer. If the price paid includes a 8% sales tax, which of the following equations can be used to determine the price of the computer after tax?
(Let x represent the cost of the computer and y represent the total cost after tax.)
OA. y = 1.08x
B.
y = 1.8x
OC.
y = x + 8x
D. y = 0.92x

Place the following steps in order to complete the square and solve the quadratic equation,

Me. i can't figure out this question. give an explanation too. .

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.