Answer:
She will get <u>80mg</u> of dextromethorphan and <u>800mg</u> of guaifenesin. And the bottle last for <u>6 days</u> approximately.
Step-by-step explanation:
Given that the Robitussin DM contains dextromethorphan 10mg/5mL and gualfenesin 100mg/5mL. And we are also given that Mrs Smith took four doses and each dose is 2 teaspoons=2X5=10mL.
So, four doses=4X10=40mL.
So, dextromethorphan in 4 doses is = 
And Guaifenesin in 4 doses is =  
 
Dosage of medicine daily she has to take=40mL and the bottle contains 237 mL. Hence the number of days bottle last =  ≈6 days approximately.
≈6 days approximately.
 
        
             
        
        
        
Answer: what do need help on
Step-by-step explanation:
 
        
             
        
        
        
150 more male bats need to be tagged
if you want 2/5 to be female you divide the 260 (<160+100) by 2 to get 130
then you multiply 130 by 3 to get the total amount of male bats that need to be tagged 
130*3=390
then you subtract 240 from the 390 to find out how many more bats need to be tagged
390-240=150
        
             
        
        
        
Answer:
$40.20
Step-by-step explanation:
60 / 100 = 0.6
0.6 x 33 = 29.8
60 - 29.8 = 40.2
Thus he price after the discount would be $40.20
 
        
             
        
        
        
Answer:
275
Step-by-step explanation:
250÷10=25 250+25=275