Tetsuo has 50 arcade tokens each arcade game at retrorama cost 4 tokens how many games can gets up play find the inequality

The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and x and the product of 21 and y is 61. what are the values of x and y?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Which of the following is the graph of y= square root -x-3