Answer:
80 questions
Step-by-step explanation:
100%/20%=5%
5×16=80
 
        
             
        
        
        
<span>Given that the orbital period, P, of a planet and the planet’s distance from the sun, a, in astronomical units is related by the formula P = a^(3/2).
If Saturn’s orbital period is 29.5 years, then
29.5 = a^(3/2)
a = (29.5)^(2/3) = 9.547
Therefore, Saturn's distance from the sun is 9.547 astronomical units.</span>
        
                    
             
        
        
        
Answer
MULTIPLY 2.2 & 5.5 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1st is correct 
Step-by-step explanation:
Like charges repel each other.
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Answer:
AD= 5.82 units (3 s.f.)
Step-by-step explanation:
Please see attached picture for full solution.
*skipped these steps in the beginning:
∠ABC +∠ABD= 180° (adj. ∠s on a str. line)
90° +∠ABD= 180°