Using proportions, it is found that Donald should order 4 of the 0.05 gram tablets.
- This question is solved by proportions, using a <em>rule of three</em>.
- 4 tablets are needed, and they should combine for 0.2 grams. How many grams is there going to be on one tablet?
The <em>rule of three</em> is:
1 tablet - x grams
4 tablets - 0.2 grams
Applying cross multiplication:



Donald should order 4 of the 0.05 gram tablets.
For more on proportions, you can check brainly.com/question/24372153
 
        
             
        
        
        
Answer:
C, ON/MN
Step-by-step explanation:
Since tan is opposite/adjacent, and the opposite of angle M is NO, then NO must be the numerator. The only answer with this as the numerator is C.
  
        
                    
             
        
        
        
-7.
5x-3 = -15
-15-4\4= -16
-16 + 9 = -7
        
                    
             
        
        
        
The lengths of the sides are 7, 23 and 24. 
In order to find this, we need to add all of the side lengths together and set equa to 54. This will allow us to solve for n. 
n + 3n + 2 + 4n - 4 = 52
8n - 2 = 52
8n = 54
n = 7
This gives us the length of the first side. To solve for the others, plug 7 into the equations. 
3n + 2
3(7) + 2
21 + 2
23
Then the next one. 
4n - 4
4(7) - 4
28 - 4
24