Answer: $22.80/hour
Step-by-step explanation: 364.80 : 16 = 22.80
 
        
             
        
        
        
I've actually just learned this. We would set up the proportion as X/9=36/X so after we cross multiply we get x^2=324. Then we find the square root of both sides to simplify. And using my calculator the square root of x^2 is just x. And the square root of 324 is 18. So the final answer is x=18 or the geometric mean is 18.
        
             
        
        
        
Answer:
C
Step-by-step explanation:
The multiples of 3 are
3, 6, 9, 12, 15, ...........
The terms form an arithmetic sequence with common difference of 3.
The sum to n terms is
 =
 =  [2a₁ + (n - 1)d ]
 [2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 3 and d = 3, thus
 =
 =  [ (2 × 3) + (139 × 3) ]
 [ (2 × 3) + (139 × 3) ]
                             = 70(6 + 417) ] = 70 × 423 = 29610 → C
 
        
             
        
        
        
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Answer:24
Step-by-step explanation: