Find the Volume and Surface Area of the figure

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m