Answer:

Step-by-step explanation:
Use these formulas

Now solve

Answer:
84m³ (A) should be correct
We know that it costs $68 for 16 square feet of flooring. To find out how much it costs for 12, we first have to find out how much it costs for 1 square foot.
To find that, we would do $68 divided by 16, which is 4.25.
That means 1 square foot costs $4.25.
Then, we would multiply $4.25 by 12 to find how much 12 square feet costs.
$4.25 times 12 is 51.
So, it would cost $51 to have 12 square feet of flooring.
3x1000+2x100+4x10+6x1+7x(1/10)+8x(1/100)
Answer:

Step-by-step explanation:
The given rational function is

Let

Interchange x and y

Cross multiply

Expand

Solve for y;

or

Therefore
