Answer:
Cost per pound: $3.53
Pounds per dollar: 0.28
Step-by-step explanation:
The cost per pound is simply the total cost divided by the amount of pounds you got for the total cost. To get the price per pound, you divide $1 by the cost per pound, $3.53, to get the amount of pounds you get per dollar.
(3x + 4)(x + 3)
3x^2 + 9x + 4x + 12
3x^2 + 13x + 12
Here is a table that will help you understand. And the answer.