Sure, let's break it down.
A) First, we know Sabrina gets an extra $75 for every motorcycle sold and also receives a fixed salary of $635 per week. We can denote the number of motorcycles Sabrina sells in a week as X. Therefore, we can create an equation which gives us the total amount Sabrina earns per week. The equation would be: Pay = $635 + $75 * X.
In this equation:
- $635 is the fixed weekly salary.
- $75 is the extra amount Sabrina gets for every motorcycle sold.
- X represents the number of motorcycles sold.
So, Sabrina's pay depends on the number of motorcycles she sells - she gets a flat $635 every week plus an additional $75 for each cycle sold.
B) Now, since we know Sabrina sold 14 motorcycles last week, we substitute X with 14 in our previous equation.
Pay = $635 + $75 * 14
Calculating the right-side expression, it totals to $1685.
Therefore, given Sabrina sold 14 motorcycles last week, she was paid $1685. This includes her weekly salary as well as the extra money she earned from selling the motorcycles.