Find the mean of these numbers: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

a 6

b 7

c 6.5

d 7.5

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.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Solve the triangle. a = 21°, c = 105°, c = 5