1. Problem Q9: Write the ratio of repeat customers to new customers. Given: Total customers = 200, Repeat customers = 80 New customers = Total customers - Repeat customers = 200 - 80 = 120 Ratio of repeat to new customers = $\frac{80}{120}$ Simplify the ratio by dividing numerator and denominator by their greatest common divisor (GCD) 40: $$\frac{\cancel{80}^{2}}{\cancel{120}^{3}} = \frac{2}{3}$$ So, the ratio is 2:3. 2. Problem Q10: Write the ratio of planning time to operations time. Given: Planning time = 2 hours, Operations time = 6 hours Ratio = $\frac{2}{6}$ Simplify by dividing numerator and denominator by 2: $$\frac{\cancel{2}^{1}}{\cancel{6}^{3}} = \frac{1}{3}$$ So, the ratio is 1:3.