What is the value of i keep getting different answers and i just cant get it : ( . 20 points! (pic now included)

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

Why is x= 4 a solution to the proportion 14/x 56/1 6

Griffin ordered a pair of sneakers online. he had a $22 credit that he applied toward the purchase, and then he used a credit card to pay for the rest of the cost. if the shoes cost $58, how much did griffin charge to his credit card when he bought the sneakers?