Find the range of the following data.
scores: 83, 77, 88, 93, 97, 79, 94, 80, 97, 81
a. 19
b. 21
c. 23
d. 20

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal