For the problem below, identify a variable equation that describes the problem situation. Calculate the various parts of the equation for the situation. Select the correct answer for each part of the equation.

Cindy-Lou has sold $135.72 of merchandise at the craft fair. Her partner, Tanner, plans to sell his figurines for $16.50 each. If they earn $878.22 by the end of the fair, how many figurines (
) did Tanner sell?

Variable: ________

where
is the number of figurines Tanner sold

where
is the number of figurines Tanner sold

where
is the number of figurines Tanner sold

where
is the number of figurines Tanner sold

Variable: x

Equation: 16.50x = 878.22

In this equation, x represents the number of figurines Tanner sold.