exam Maths Puzzle Numerical Ability

Three times the complement of an angle less the supplement of an angle is 10 degrees. Find the supplement.

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exam Other Question

The radius of a circular mirror is 42 centimeters. Estimate the circumference of the mirror. C= 2pi r What do you set the equation equal to when you are looking for the measure of an angle in a circle? example: what would the angle equal if the equation was: 15x+3 would I set it equal to 360 or what or what if the equation were just 4x