The answer is 33 because you would subtract 3 from 63 and then divide 60 by 2 which is 30. Since Mr. Smith is 3 years older then u would add 30 and 3.
Answer:
12 in.
Step-by-step explanation:
The perimeter is calculated by adding all up the sides of a shape. In this case, the shape is a square, considering that all the sides are the same measurements. 3+3+3+3 can be simplified to 3x4. This gives you 12 in. as the perimeter.
The answer to your question is D!