1. Pg 71-73 # 7-25 ALL Pg 74 # 30-41 ALL

6. -6 |-7 – (-2)| = |-5| = 5 |3 – (-2)| = |5| = 5

7. a + b = -2 + 3 = 1 222

8. 3m + 5 = 4m – 10 – 5 3m = 4m – 15 – 4m – m = – 15 – 1 m =

9. 50 a + a + 8 = 50 Combine like terms. 2a + 8 = 50 – 8 2a = 42 22 a = 21

11. 61 25 61 – 25 =

12. 2x + 8 x + 22 2x + 8 = x + 22 – 8 2x = x + 14 –x–x – x x =

17. 3x + 31 + 2x − 6 = 180º – 25 5 Combine like terms. 5x + 25 = 180º – 25 5x = 155º 5 x =

18. 3x + 4x − 15 = 90º + 15 7 Combine like terms. 7x − 15 = 90º + 15 7x = 105º 7 x =

19. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve (0−(−1))²+ (4 −5)² (1)²+(−1)² 2≈

20. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve (6−(−1))²+ (2 −(−1))² (7)²+(3)² 58 ≈ 49+9

21. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve (5−(−7))²+ (8 −0)² (12)²+(8)² 208 ≈ 144+64

22. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve -33-22

23. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve ((−3)−3)²+ ((−2) −2)² (−6)²+(− 4)² 52 ≈ 36+16

24. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve −84 Multiply both sides by 2 +8 −4

25. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve 9−5 Multiply both sides by 2 −9 +5

26. Step 1 Label the points Step 2 Write the formula Step 3 Substitute and solve 011 Multiply both sides by 2 −11

27. P = 8 + 8 + 8 + 8 = A = 8 × 8 = A = L × W

28. P = 3 + 3 + 5 + 3 + 3 + 5 + 5 + 5 = A = L × W A = 5 × 5 A = 25 A = 5 × 3 A = 15 A = 25 + 15 =

29. C = A = C = 2  r C = 2  (3) C = A =  r² A =  (3)(3) C = 2  r C = 2  (7.5) A =  r² A =  (7.5)(7.5) A = 56.25