Front and back row tickets to a performance are available. there are 18 front rows with 39 seats in each row, and 27 back rows with 4 seats in each row. if 5/6 of all the front row seats and 7/9 of the back row seats are sold, how much is the total ticket sales? hey

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25