Step-by-step explanation
Since Alexis hit, the appropriate relationship should consider a division between the number of balls Alexis hit and the total.
Dividing them gives the following expression:

Now, in order to represent as a percentage, we must multiply this fraction by 100:

Equaling the fraction to x, assuming that x represents the computed percentage:

Dividing both sides by 100:

Reversing the fractions:

In conclusion, the equation that gives the appropriate relationship is OPTION D