exam Maths Puzzle Numerical Ability

3x - 5(3x- 7) = 2(x + 9) + 45

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exam Other Question

the tickets to a concert cost $16.30 for the lower level and $5.50 for the upper level. A total of 16400 tickets were sold for a total amount of $183,080 How many upper level tickets were sold? R= 4600; 8.73% interest compounded quarterly for 6 years