exam Maths Puzzle Numerical Ability

A sewer-cleaning company charges an inital fee of $1.00/ft for 100 feet of sewer line and the charge increases by $0.50 per foot for each additional 100 feet of line. If a potentia

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A student makes a $9.25 purchase at a bookstore with a $20 bill. The store has no bills and only quarters and fifty cent pieces for change. There are 30 coins total given back to t A rectangle has sides of 3x - 4 and 7x + 10. Find the expression that represents its perimeter.
[Perimeter = 2* width + 2*length]