The value v of your quarters (in cents) is a function of n, the number of quarters you have. 1. Draw an input-output diagram to represent this function.
2. Write an equation that represents this function.
3. Find the output when the input is 10.
4. Identify the independent and dependent variables.
Submission

i hope this is what you were looking for.

see attached graph

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

answer: i think it is c