Please help. Find angle k

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

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

Collin did the work to see if 10 is a solution to the equation r/4=2.4