exam Maths Puzzle Numerical Ability

Tickets for the homecoming dance cost $20 for a single ticket or $35 for a couple. Ticket sales totaled $2280, and 128 people attended. How many tickets of each type were sold?

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exam Other Question
Can I have some help finding the inverse function of f.

f(x) = -8x - 7 solve the inequality. write answer in interval notation.
100 < or equal to 10(5x-2) < or equal to 200




for what values of x is the perimeter of the rectangle from 40 to 60 feet?
length:x+3
width: 2x