Answer:
Option A
a + s = 1650 ; 3.5a + 2b = 4580
Explanation:
a ------> number of adult tickets
s ------> number of student tickets
Total tickets = $ 1650
a +s = 1650
Cost of 'a' number of adult tickets = 3.50*a = 3.5a
Cost of 's' number of student tickets = 2*s = 2b
Revenue raise = $ 4580
3.5a + 2b = 4580