There were 72 (108 - 36) more maple trees in the woodlot before the bug problem. There were 108 maple trees in the woodlot before the bug problem. There are 36 maple trees in the woodlot after the bug problem.
The following information is given in the question:
Ratio of maple trees to oak trees before bug problem = 9:5
Ratio of maple trees to oak trees after replanting = 3:11
Total number of oak trees after replanting =132
Total number of trees in the woodlot is the same before and after the bug problem.
Let the number of maple trees after replanting be 'x'
From the data above, we can find the number of maple trees after replanting as follows:
So, number of maple trees after replanting in the woodlot are 36.
Let number of maple trees before bug problem be 'z'.
We can find the number of maple trees before bug problem as follows:
Answer:
the difference between revenue and variable cost
Explanation:
As we know that
Producer surplus is = Total Revenue - Total Variable Cost
So here we can see that the producer surplus would be the difference between the revenue & the variable cost in the industry i.e. perfectly competitive
Hence, the second last option is correct
And, the other options are wrong
Answer:
The economy is expanding quickly.
Explanation:
Aggregate supply is a measure of the total supply of goods and services made available by the supplier in an economy.
The normal aggregate supply curve is one with a positive slope. That is as price increases there is an increase in aggregate supply, and when price reduces aggregate supply also reduces.
However when aggregate supply curve is vertical, only one level of output is produced no matter the rise or fall of price.
This indicates that the economy is producing at capacity, and any increase in price will not result in increase in output.
It does not mean that the economy is expanding quickly.
They tell you that over time they changed and their prices went lower
