exam
Maths Puzzle
Numerical Ability
the official volleyball measures 27 inches in circumference. what is the surface area?
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exam Other Question
Sarah has a collection of nickels, dimes, and quarters worth $15.75. She has 10 more dimes than nickels and twice as many quarters as dimes. How many coins of each kind does she have?
Please help.
e^2x-1 = 30