57%
Explanation:
Contribution margin ratio is the ratio of difference between a company's revenue and variable expenses to the revenue of the company. It is usually expressed as a percentage.
This is also the ratio of the contribution margin to sales.
Given that Selling price per unit $3.50 Variable cost per unit $1.05
Contribution margin ratio
= (3.50 - 1.50)/ 3.50
=2/3.5
= 0.57
= 57%
C. Galvin is most qualified to work for plant systems and animal systems.
I hope this helps