Respuesta :
The answer is 21.75 feet.
[tex]1 \: yard = 3 \: feet \\ 7 \frac{1}{4} \: yards = \frac{29}{4 } \: yards\\ \frac{29}{4} \: yards \times \frac{3 \: feet}{ 1 \: yard} = \frac{87}{4} \: feet = 21 \frac{3}{4} \: feet[/tex]
[tex]1 \: yard = 3 \: feet \\ 7 \frac{1}{4} \: yards = \frac{29}{4 } \: yards\\ \frac{29}{4} \: yards \times \frac{3 \: feet}{ 1 \: yard} = \frac{87}{4} \: feet = 21 \frac{3}{4} \: feet[/tex]