exam Maths Puzzle Numerical Ability

Show your steps in simplifying the radical expression. Make sure to follow the pattern shown in the examples 3 cubed of square root of 45

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exam Other Question

please help me graph this equation This is what I got 10y=15x=20 10y-10y 20-10y now I got lost please correct and graph for me if you can.Thank you! If i paid $166.67 for an item but i sold it for $380.00,what is the mark up percentage?