To find the equation that represents how to compute Raquel's wage for each yard, we can start from the information given: she gets paid $75 to mow 8 yards.
To find her wage per yard, we can divide her total wage by the number of yards:
\[ \text{Wage per yard} = \frac{75}{8} \]
Let \( x \) be the wage per yard. The equation that represents this relationship is:
\[ \frac{75}{8} = \frac{x}{1} \]
Therefore, the correct choice is:
75/8 = x/1.