Simplify -9/6 divided by 3/-2. A: 3 B: 1 C: -1 D: -3

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°

What is the circumference of a circle with an area of 50.24 cm²?