Suppose that there are two industries, a and b. there are five firms in industry a with sales at $5 million, $2 million, $1 million, $1 million, and $1 million, respectively. there are four firms in industry b with equal sales of $2.5 million for each firm. the four-firm concentration ratio for industry a is:
.9

0.9

Explanation:

The formula to compute the four-firm concentration ratio is shown below:

= (Total firm sales of industry A) ÷ (Total firm sales of industry B)

where,

Total firm sales of industry A = $5 million + $2 million + $1 million + $1 million

= $9 million

And, the total firm sales of industry B would be

= $2.5 million × 4 firms

= $10 million

So, the ratio would be

= $9 million ÷ $10 million

= 0.9

a recipe serves 8 people, and calls for 5 lbs of apples and 2 cups of flour. you want to prepare it for 24 people. divide 24 by 8 to get 3, and then multiply your ingredients by 3.

so for 24 people, you'll need 15 lbs of apples, and 6 cups of flour.

answer; how many employees will be needed for jobs in the coming period;