Question

what percentage of the shape is purple?
write your answer using a percent sign (%).

Explanation:

Step1: Count total grid cells

The grid is $10 \times 10$, so total cells: $10 \times 10 = 100$

Step2: Count purple grid cells

There are 3 full rows of 10 cells: $3 \times 10 = 30$

Step3: Calculate percentage

Percentage = $\frac{\text{Purple Cells}}{\text{Total Cells}} \times 100\% = \frac{30}{100} \times 100\% = 30\%$

Answer:

30%