Brainstorm alison sets aside $55 each month to spend on books and cd .if she spend c dollar on cds ib a given month she may spend b dollar on books where c+b =55.graph the equation and use the graph to estimatw the amount alison may soend on book in march if she spend $30 on cds

For a better understanding of the solution/explanation given here please go through the graph in the file attached.

It is given that Alison sets aside $55 each month to spend on books and cd. Thus, the guiding equation that will define this situation has been given as:

Where b is the amount for books and c is the amount for cd.

In terms of books the above equation will become:

This equation has been graphed in the attachment where the x axis is the axis for c (CD) and the y axis is the axis for b (books)

Now, it has been given that Alison has spent $30 on CD. Therefore, as can be seen from the graph, the vertical line is that of c=30 and it intersects the b=55-c at (25,30), thus, the amount Alison may spend on books in march is $25.

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3