# Chapter R - Section R.2 - Real Numbers and Their Properties - R.2 Exercises: 48

2

#### Work Step by Step

1. Substitute values of p, q, and r into numerator of equation. 5(8) + 2(1 + (-4))^{3} First solve parentheses, then exponents, then multiply, then add. 5(8) + 2(-3)^{3} = 5(8) + 2(-27) = 40 - 54 = -14 2. Substitute values of p, q, and r into denominator of equation and solve. -10 + 3 = -7 3. Divide numerator by denominator. -14/(-7) = 2

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.