Question

1. a book decreases from $16 to $12. what is the percent decrease?

Explanation:

Step1: Find the amount of decrease

Subtract the new price from the original price: $16 - 12 = 4$.

Step2: Calculate the percent decrease

Use the formula for percent decrease: $\frac{\text{Amount of Decrease}}{\text{Original Amount}} \times 100\%$. Substitute the values: $\frac{4}{16} \times 100\% = 0.25 \times 100\% = 25\%$.

Answer:

25%