Let's begin by identifying key information given to us:
To the park: Jada bikes x miles
From the park: Jada bikes 1/4 of x miles
The value of c (the total distance) is given by:
[tex]\begin{gathered} c=(x+\frac{1}{4}x)miles=1\frac{1}{4}x \\ c=1\frac{1}{4}x\text{ }miles \end{gathered}[/tex]