The following data show the number of times different students of a class practice karate in a week:

4, 6, 7, 3, 4, 4, 2, 5, 4, 3, 1, 2, 5, 2, 3, 5, 1, 3, 2

the dot plot below was made to represent the data.

a box plot showing 2 dots over 1, 4 dots over 2, 4 dots over 3, 4 dots over 4, 4 dots over 5, 1 dot over 6, and 1 dot over 7

for which number is the data plotted incorrectly?

1
3
4
5

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.