Answer
See the explanation
Work Step by Step
$B=703\frac{W}{H^2}$
a.$\begin{array}{lll}
Brian&B=703\frac{295}{(70)^2}=42.32&obese\\
Linda&B=703\frac{105}{(66)^2}=16.95&Underweight\\
Larry&B=703\frac{220}{(76)^2}=26.73&overweight\\
Helen&B=703\frac{110}{(62)^2}=20.12&Normal
\end{array}$
b.$B=703\frac{130}{(67)^2}=20.36$