1. Bell Ringer  Evaluate the following expressions if a = 5 and b = -3: 1. (a – b) 2 (a + b) (5 – -3) 2 (5 + -3) 8 2 2 2. (2a – ab + 3b) 2 (a + b) (25 – 5-3 + 3-3) 2 (5 + -3) 16 2 2 = 32 = 128

2. Homework 1. 102 ft 2 2. 83 ft 2 3. 55.25 ft 2 4. 46.5 ft 2 5. 370 ft 2 6. 164 ft 2 7. $3,375

3. Geometry Missing Measurements

4. Perimeter Solve for x, if the perimeter is 45 ft. 2x 2x + 3 3x – 7 (2x + 3) + 2x + (3x – 7) = 45 7x – 4 = 45 7x = 49 x = 7

5. Perimeter Solve for x, if the perimeter is 34 ft. 2x – 1 2(2x – 1) + 2(x + 2) = 34 4x – 2 + 2x + 4 = 34 6x – 2 = 34 6x = 36 x = 6 x + 2

6. Area Solve for x, if the area is 40 ft 2. 2x + 1 8 (2x + 1) = 40 16x + 8 = 40 16x = 32 x = 2 8

7. Area Solve for x, if the area is 30 ft 2. 12 ft A = ½ B H ½ 12 (x – 5) = 30 6(x – 5) = 30 6x – 30 = 30 6x = 60 x = 10 x – 5