I think the answer is D all of the above
Answer:
126
Step-by-step explanation:
n! / (r! (n-r)!)
In this case n = 9 and r = 4
9!/ (4! * (9-4)!)
9!/ (4! * 5!)
= 126
9! = 9x8x7x6x5x4x3x2x1
<h3>Given:</h3>
▪ 
First, rewrite the numerator in such a way that the coefficient 2.1 becomes 21:
Divide the coefficient:
Divide the base by subtracting the exponents of the base 10.
Hence, the quotient of the given expression has a coefficient of 3 and the exponent of the base 10 is -4.
Answer:
B : a 20% increase in variable costs
Step-by-step explanation:
Here the industry is seeing a 20% increase in activity levels over the fourth quarter. Since, there has been an increase in activity levels the fixed cost would remain the same but the variable cost being variable would increase with increase in production activity in same proportion as the increase in production.
B : a 20% increase in variable costs
