Write and solve the system of equations for each of the following problems. You have to write two equations for each problem PLEASE

1. A plane makes a 600 mile trip in 3 hours flying with the wind, but the return trip against the same wind takes 4 hours.
What is the rate of the plane in still air and the rate of the wind?
2. Two pizzas and four sandwiches cost $62. Four pizzas and 10 sandwiches cost $140. How much does each pizza
and sandwich cost?