She would be 40 years old.
The right answer is Option D: S>$300,000.
Step-by-step explanation:
Given,
Base salary of Alan = $18000
Commission = 9% = 
Amount Alan wants to earn = $45000 or more
Let,
s be the worth he needs to sell.
Therefore,
Base salary + Commission*Total sales>Amount Alan wants to earn
18000+0.09s>45000

Dividing both sides by 0.09

Alan must sold items that worth at least $300,000.
The right answer is Option D: S>$300,000.
Keywords: inequality, division
Learn more about inequalities at:
#LearnwithBrainly
Answer:
perpendicular
Step-by-step explanation:
When 2 lines intersect at any point, not just in the middle of each (that has nothing to do with it), and they meet to form right angles, the lines are perpendicular to one another and their slopes are opposite reciprocals.