Answer:
50-20 or perimeter-2length
Step-by-step explanation:
15 inches is the width
Answer:
21
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define expression</u>
3 × 3 + 3 + 3 × 3
<u>Step 2: Evaluate</u>
- Multiply: 9 + 3 + 3 × 3
- Multiply: 9 + 3 + 9
- Add: 12 + 9
- Add: 21