Respuesta :

Space

Answer:

134.9

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

Step 1: Define

9.1p + 8.9r

p = 7

r = 8

Step 2: Evaluate

  1. Substitute:                    9.1(7) + 8.9(8)
  2. Multiply:                        63.7 + 71.2
  3. Add:                              134.9