exam Maths Puzzle Numerical Ability

Find the GCF for 85, 136, and 170 show the factorizations

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exam Other Question

x + 2y � z = 6
2x - y + 3 = 13
3x � 2y +3z = 16
Solve each system of equations algebraically using the method of substitution or the method of elimination. I a photo is 8 inches long and 5 inches wide. If reduced copy is made so that the width is 3 inches, what will be the length of the copy?