I hope the photo loads cos it’s just black for me but pls help

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

How do you solving the solution of each system using elimination?

How many solutions does the nonlinear system of equations graphed below have?