The length of a rectangle is 9 inches and its perimeter is 48 inches. What is the width of the rectangle? A. Let [Math Processing Error] represent the unknown width of the rectangle. Write an equation that can be solved for the unknown measurement. B. Solve your equation to find the width of the rectangle. Show all your work.

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.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?