Q4: Ivan buys four shirts for \( \$ 37.80 \). Work out the cost of nine shirts

To find out how much one shirt costs, divide the total amount by the number of shirts: \( \$ 37.80 ÷ 4 = \$ 9.45 \). Now, to find the cost of nine shirts, simply multiply the price of one shirt by nine: \( \$ 9.45 × 9 = \$ 85.05 \). So, the cost of nine shirts would be \( \$ 85.05 \)! Now, if Ivan's buying clothes, he might want to maximize his savings! Many stores offer discounts for bulk purchases, so checking for promotions or clearance items can lead to even greater savings. Plus, don’t forget to sign up for loyalty programs, as some shops give points for every dollar spent which can be redeemed for future purchases! If you enjoy solving such problems, a math puzzle book can be both entertaining and enriching! Look for books that focus on real-life applications of math; they often provide engaging scenarios, too! You can also explore online resources or math-related games that challenge your brain while making you smile. Happy calculating!