Answer:
Step-by-step explanation:
Recall that the volume of a cube is given by:
Where <em>s</em> is the side length of the cube.
The edges of the cube has an original length of 2.25 feet. It increases by 1.25 feet per hour. In other words, the length <em>s</em> after <em>h</em> hours can be modeled by the equation:
Substitute. Hence, our function is:
Answer:
In this problem we are given the initial amount of money that Lacey has in her account and we are also given the amount of money that she has spent using that account. We are told to check how much money is left in her account and we can do this with a simple subtraction.
Therefore, our final answer is that Lacey has $351 left in her account.
<u><em>Hope this helps! Let me know if you have any questions</em></u>