c) \( \frac{56}{\square}=\frac{-7}{8} \)

To solve for the square, you can use cross-multiplication. Multiply both sides by the square to isolate it: \( 56 \times 8 = -7 \times \text{square} \). This gives you \( 448 = -7 \times \text{square} \). Now, divide both sides by -7 to find the square: \( \text{square} = \frac{448}{-7} \), which simplifies to \( -64 \). Thus, \( \frac{56}{-64} = \frac{-7}{8} \) is indeed a true statement! Now, you can check your answer by substituting \( -64 \) back into the original equation. If you have \( \frac{56}{-64} \), simplifying this fraction by dividing both the numerator and the denominator by 8 gives \( \frac{7}{-8} \) or simply \( \frac{-7}{8} \). Bingo! You’ve verified that your solution is correct!