Answer:

Step-by-step explanation:
Given

Required
Find 
First, we calculate the inverse function

Express f(x) as y

Swap the positions of x and y

Solve for y: Add 4 to both sides


Square both sides

Divide both sides by 2

Express y as an inverse function

Next, solve for: 
Substitute 6 for x




1 decigram is 100 milligrams so the flea weighs 800 milligrams and 800-3=797 so the flea weighs 727 milligrams more than the ant
Because it will not be 40 percent of the original, since after 20 percent is gone, the next year itll be 20 percent of the product, instead of the original, so for example, if it was 100, it would go down to 80, and then the next year it would be 20 percent of 80, not 100
If the store can only buy them in bulks of ten, then you take your number of desired cars (3,000) and divide it by the bulk amount (10) and it will give you your amount of bulk you need to buy to fulfill your desired amount of product (300). Simplified, you take your cars that they want, divide it by how many come in a set, and the answer will be how many sets they need to order. You need to use both the amount of desired cars and number of cars in a set as you primary information to solve this problem. Hope this helped!