HELP IS SEVERELY NEEDED

Sacramento finished construction of the Golden One Center in 2016. In Section
107 of the arena, each of the 18 rows has 33 seats. For an upcoming basketball
game, seats in the upper level of Section 107 cost $150 and seats in the lower
level of Section 107 cost $380.
a) They sold twice as many upper level tickets as lower level tickets and
collected $110,160. How many upper level and lower level tickets were sold?
b) were all the tickets for the seats in Section 107 sold? Justify your reasoning.
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