Denise invested her \$35,000 in two banks. The first bank offers 1.35% annual interest. The second bank offers 1.52% annual interest. How much was invested at the first and second bank if the total interest earned for a year was \$504.50?

Plot the following point in the Cartesian coordinate system: (3, 7)

In the graph of 9x + 20y = 18, solve for the x-intercept.