What is 15 and 3/5 % as a fraction in simplest form

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The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93