Which equation is equivalent to -k+0.3+10.1k=-24.5-18.1k?

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two