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

zach worked 5.5 hours on monday, 4.25 hours on Tuesday, and 5.7 hours on wed. Find the average of hours Zach worked for those days -3 - square root of 18 / -6

sorry i do not know how to place the square root sign in so i wrote it out.