Will is 29% taller than Wanda, so Will's height is 77.5% of Wanda's height.
Solution:
Let x be Will's height, and y be Wanda's height.
Since Will is 29% taller than Wanda we have,
[tex]x=1.29y \rightarrow(y+29\% \text{ of y }\rightarrow1y+.29\rightarrow y\rightarrowy(1+.29)\Rightarrow1.29y)[/tex]
Then solving for y we get,
[tex]\Rightarrow y=\frac{x}{1.29}\rightarrow y=\frac{100x}{129}[/tex]
[tex]\Rightarrow y\approx0.7752x[/tex]
Therefore, Will is 77.5% of Wanda's height.
