exam
Maths Puzzle
Numerical Ability
Plot and solve (Identify solution sets) the following systems:
{2x=4+y and y/2=-x+2}
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exam Other Question
A wallet contains $1, $5 and $20 bills. The number of $5 bills is equal to the sum of the other bills. If the wallet contains ten bills total, how many $5 bills does it contain?
Factor the polynomial
9 y 2 - 64