Help me im adding and subtracting integers pl 40 points for it Find each sum.

8 + (-1) + (-6) + 5

- 2 + 6 + (-3) + (-4)

Use a number line to find each difference.

7 - 4

3 - 8

- 2 - (-3)

- 1 - (-1)

- 4 - 3

81 - 106

43 - (-21)

- 25 - (-57)

17 - 18 - (-81)

- 18 - 13 - 12

23 - (-18) - (-54)

16 - 28 - (-38)

Evaluate the following expression 1/3^2

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Find the perimeter of the figure shown above. a. 18 yds c. 20 yds b. 10 yds d. 24 yds select the best answer from the choices provided