First 6.60 divided by 6 to find the unit rate. It is 1.10 dollars per eraser. You then do 1.10 times 3 which will get you 3.30 dollars for 3 erasers.
Answer:
When the price of a good that complements a good decrease, then the quantity demanded of one increases and the demand for the other increases. When the price of a substitute good decreases, the quantity demanded that good increases, but the demand for the good that it is being substituted for decreases.
Answer:

The graph is also attached below.
Step-by-step explanation:
Given the function

- We know that the range of a function is the set of values of the dependent variable for which a function is defined.





Thus,

The graph is also attached below.