3x - 2.25x = 100
The equation above represents the dollars amount that Keri earns from her jewelry-making business.
She spends $2.25 for material to make 1 bracelet.
She sells a five-pack of bracelets for $15.
If x is the number of bracelets that she makes, what does the 3 represent in the equation?

A 3 is the total she spends on material to make x bracelets.

B 3 is the number of bracelets she makes

C 3 is the selling price per bracelet

D 3 is the net profit.