(this is the last one I need done pleasee help me)

she will have to pay  $113.40 extra for intrest over three years  

Step-by-step explanation:

6 percent intrest would be 0.06 so times that by 630 to get the yearly intrest and then times that by 3 to get it after three years

therfore the answer would be 113.40

hope this helps

hiking down a winding trail.

step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system