The combined angle measure is 70^. The two given angles are 45^ and f^.

Here are the solutions to the problems: 3. The combined angle measure is 70^. The two given angles are 45^ and f^. Step 1: Set up the equation based on the sum of the angles. 45^ + f^ = 70^ Step 2: Solve for f. f^ = 70^ - 45^ f^ = 25^ The value of f is 25. 4. The combined angle measure is 115^. The two given angles are t^ and 90^ (indicated by the right angle symbol). Step 1: Set up the equation based on the sum of the angles. t^ + 90^ = 115^ Step 2: Solve for t. t^ = 115^ - 90^ t^ = 25^ The value of t is 25. 5. The combined angle measure is 180^ (a straight angle). The two given angles are x^ and 150^. Step 1: Set up the equation based on the sum of the angles. x^ + 150^ = 180^ Step 2: Solve for x. x^ = 180^ - 150^ x^ = 30^ The value of x is 30. 6. The two given angles, 35^ and r^, form a right angle, which measures 90^. Step 1: Set up the equation based on the sum of the angles. 35^ + r^ = 90^ Step 2: Solve for r. r^ = 90^ - 35^ r^ = 55^ The value of r is 55. 7. Problem Solving Step 1: Determine the angle between each number on a clock face. A full circle is 360^, and there are 12 numbers on a clock. Angle per number = (360^)/(12) = 30^. Step 2: Identify the positions of the line and the minute hand. The line is drawn to the number 12. The minute hand is on 2. Step 3: Calculate the angle between the line at 12 and the minute hand at 2. The minute hand moves 2 positions from 12 (from 12 to 1, and from 1 to 2). Angle = 2 × 30^ = 60^. The angle is 60^. 8. Test Practice The combined angle measure is 120^. The two given angles are n^ and 80^. Step 1: Set up the equation based on the sum of the angles. n^ + 80^ = 120^ Step 2: Solve for n. n^ = 120^ - 80^ n^ = 40^ The value of n is 40. Comparing this to the given options: A) 45 B) 40 C) 35 D) 30 The correct option is B).