adjacent, and complementary 
 
        
                    
             
        
        
        
Answer:
D. 18.68
Step-by-step explanation:

Applying PEMDAS as order of operations.
Solving the exponents first ![[(\frac{2}{5})^2=\frac{4}{25}]](https://tex.z-dn.net/?f=%5B%28%5Cfrac%7B2%7D%7B5%7D%29%5E2%3D%5Cfrac%7B4%7D%7B25%7D%5D)

Multiplying ![[53\times \frac{4}{25}=8.48]](https://tex.z-dn.net/?f=%5B53%5Ctimes%20%5Cfrac%7B4%7D%7B25%7D%3D8.48%5D)

Dividing ![[27\div \frac{5}{3}=16.2]](https://tex.z-dn.net/?f=%5B27%5Cdiv%20%5Cfrac%7B5%7D%7B3%7D%3D16.2%5D)

Adding and subtracting.

 
        
             
        
        
        
Answer:
f(30)= 75
Step-by-step explanation:
3(30)-15
90-15
75
 
        
             
        
        
        
Answer:
y = -5x - 21
Step-by-step explanation:
Given in the question,
equation of a parallel line 
 y = -5x + 6
point through which it passes 
(-4,-1)
Step1
Find the gradient of the equation given, as it is parallel so it will have same gradient 
equation of straight line 
y = mx + c
where m is gradient 
             c is y intercept 
y = -5x + 6
m =-5
Step2
Find y-intercept
-1 = -5(-4) + c
-1 = 20 + c
c = -20 - 1
c = -21
Step3
form the equation
y = -5x - 21
 
        
                    
             
        
        
        
Answer:
2.72 ml 
Step-by-step explanation:
4 lb = 1814.37 gm
1814.37 gm  * .09 mg/gm  / ( 60 mg/ml) = 2.72 ml