If movie tickets were $5.50 for a child's ticket and $9.20 for an adult ticket, if 149 tickets were sold, with a total of $1137.70, how many tickets sold were adult tickets?

Solve for x by completing the square. 2x^2-4x+7=0

The graph of the quadratic function shown on the left is y = –0.7(x + 3)(x – 4). the roots, or zeros, of the function are . determine the solutions to the related equation 0 = –0.7(x + 3)(x – 4). the solutions to the equation are x =

What is the value of 1/3x + 7x when x = 5