cupcake, calculate the total price you will pay for the cupcakes. Michele did a 5 km parkrun in 42 min . Calculate her average speed per minute. Sam has a local bakery where she sells freshly baked bread. She found the following options of cake wheat flour online: 10 kg bag for R 129 or \( \mathrm{R} 33,99 \) for \( a 2,5 \mathrm{~kg} \) bag. a) Calculate the price per kg of each option. b) Each loaf Sam makes uses 300 g of flour. Calculate the most cost-

Below are the answers step‐by‐step. Note that the first (cupcake) problem does not include any numbers, so we’ll explain the method to calculate the total price, and then we’ll solve the other two problems. ───────────────────────────── 1. Cupcakes – Total Price To calculate the total price you pay for cupcakes, you must know:   • The price for one cupcake (or price per dozen, etc.)   • The number of cupcakes you are buying Then simply use:   Total Price = (Price per Cupcake) × (Number of Cupcakes) For example, if each cupcake costs R5 and you buy 12 cupcakes, then the total price is:   Total Price = 5 × 12 = R60 (If you have specific numbers, you can plug them into this formula.) ───────────────────────────── 2. Michele’s Parkrun – Average Speed per Minute Michele ran 5 km in 42 minutes. To find her average speed per minute (in km/min), use:   Average speed = (Total distance) / (Total time) Thus:   Average speed = 5 km / 42 min ≈ 0.119 km/min You might also express this as roughly 0.12 km every minute. ───────────────────────────── 3. Sam’s Bakery – Comparing Flour Options Sam has two options for buying cake wheat flour: Option A: 10‑kg bag for R129 Option B: 2.5‑kg bag for R33,99 a) Price per kilogram For Option A:   Price per kg = R129 ÷ 10 = R12.90 per kg For Option B:   Price per kg = R33.99 ÷ 2.5   Let’s calculate that:     33.99 ÷ 2.5 = 13.596   Rounded, that is approximately R13.60 per kg b) Cost per loaf using 300 g of flour Each loaf uses 300 g = 0.3 kg of flour. Cost per loaf when using Option A:   Cost = 0.3 × R12.90 = R3.87 Cost per loaf when using Option B:   Cost = 0.3 × R13.60 ≈ R4.08 Thus, the flour from the 10‑kg bag (Option A) is more cost‑effective because the flour cost per loaf is lower (R3.87 vs. R4.08). ───────────────────────────── Summary of Answers: 1. Cupcakes: Multiply the number of cupcakes by the price per cupcake.   Total Price = (Price per Cupcake) × (Number of Cupcakes) 2. Michele’s average speed = 5 km ÷ 42 min ≈ 0.119 km/min (about 0.12 km/min) 3a. Flour price per kg:   Option A: R129/10 = R12.90 per kg   Option B: R33.99/2.5 ≈ R13.60 per kg 3b. Cost per loaf (300 g flour):   Option A: 0.3 × R12.90 ≈ R3.87   Option B: 0.3 × R13.60 ≈ R4.08 The 10‑kg bag is the cheapest option per kilogram and per loaf.