book Maths Puzzle Numerical Ability

Use the distributive property to help simplify the expression.

(-2/3)SQRT of 18) + (4/5 SQRT of 18) - (5/6 SQRT of 18)

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book Other Question

I need to find out what number times 15% is $2,764.78 and how you arrived at your answer.

Thanks!
use a unit multiplyer to convert 11 inches to centimeters.(1in. = 2..54cm.) {the answers are..........2.794cm., 27.94cm., 4.33cm., or none of these}