📘 arithmetic and algebra

1. Let's start with **Consumer Arithmetic**: It involves calculations related to buying and selling, discounts, and taxes. 2. **Profit and Loss**: The formula for profit is $\text{

1. **Problem 1: Conditions for divisibility by 12** Given the number 5aa1a, we need to determine for which digits \(a\) it is divisible by 12.

1. Stating the problem for Q.2.1: Lebo has 5 cups of sugar and needs to use it for brownies, cupcakes, and cookies with amounts 1 \(\frac{3}{4}\), 2 \(\frac{1}{2}\), and \(\frac{7}