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Maths Puzzle
Numerical Ability
If you get a 68 on one test, a 73 on a second test and an 84 on the third test, what score must you get on a fourth test in order to have an average of 80?
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Hi...this would be extremely beneficial for me if somebody could help with this problem: Find the length of each side of a regular hexagon if opposite sides from midpoint to midpoint are 18 inches apart.
Solve the following system of linear inequalities by graphing.
3x + 4y ≤ 12
x + 3y ≤ 6
x ≥ 0
y ≥ 0