10 points What is the range? (Hint: largest number - the smallest number) *
The stem and leaf plot shows the grades received on a recent test.
Stem/Leaf
7 0 144
8 5 79
3589
KEY
7|0 = 70 is the grade
The data would be 70, 71, 74, 74, 85, 87, 89, 93, 95, 98, 99
Your answer

Step-by-step explanation:

7.3

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.