Question

how much longer is the envelope than the stamp? 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 centimeters 11 centimeters 15 centimeters 12 centimeters

Explanation:

Step1: Find stamp length

The stamp spans from 0 to 3 cm, so length = $3 - 0 = 3$ cm.

Step2: Find envelope length

The envelope spans from 0 to 15 cm, so length = $15 - 0 = 15$ cm.

Step3: Calculate difference

Subtract stamp length from envelope length: $15 - 3 = 12$ cm.

Answer:

12 centimeters