1. Problem: Interpret the expression "Czekaj 16 to jest jako osobna liczba obok a nie w ułamku" which means "Wait, 16 is a separate number next to 'a', not in a fraction." 2. Explanation: When a number is written next to a variable without a fraction bar, it means multiplication. For example, $16a$ means $16 \times a$. 3. Important rule: Multiplication between a number and a variable is implied by writing them side by side. 4. Example: If $a=2$, then $16a = 16 \times 2 = 32$. 5. Summary: The number 16 is multiplied by the variable $a$, not part of a fraction. Final answer: $16a$ means $16 \times a$.