Answer:
This drawn graph is the answer
Step-by-step explanation:
 
        
             
        
        
        
Y = -7sin(x) + 2cos(x) 
y = -7sin(3π/4) + 2cos(3π/4)
y = -7sin(9.42/4) + 2cos(9.42/4)
y = -7sin(2.355) + 2cos(2.355)
y = -7(0.03698381721) + 2(0.9993158646)
y = -0.2588867205 + 1.998631729
y = 1.739745009
        
             
        
        
        
Answer:
$14,903.85
Step-by-step explanation:
So, Ms. Lui earns $775,000 each year. To find the weekly salary, we have to divide the annual income by the amount of weeks in a year. There are about 52 weeks in one year. Let's find the weekly salary: 

Therefore, Ms. Lui earns $14,903.85 a week. 
Hope this helps! If you have questions about my work, please leave them in the comments!