Question 14: We are given that: C = πd To solve for d, we need to isolate the d on one side of the equation. This means that we need to get rid of the π next to the d. In order to do so, we can simply divide both sides of the equation by π as follows: C/π = πd/π d = C/π .........> The first option
Question (15): We are given that: d = rt To solve for r, we need to isolate the r on one side of the equation. This means that we need to get rid of the t next to the r. In order to do so, we can simply divide both sides of the equation by t as follows: d/t = rt/t r = d/t.........> The third option
