You just multiply 450 by .18 and it'll give you the 18% you have to add to 450.
So the equation would look like:
450(.18)=81
Which you then add:
450+81= 531
So 531 is your total!
Answer:

Step-by-step explanation:
Given



Required
Represent this as an inequality
When Dana cooks;



At Restaurant



Add these two results:

<em>To represent as an inequality, the above result must be less than or equal to Dana's total savings</em>
i.e.

From the ratio given you can determine that m is proportional to 1/(r^3). You can write this as m = k * 1/(r^3), k being your constant of proportionality. Then use this to calculate the next parts of the question.