alicia estimated her test score to be 85. her actual score was 80. what was the percent error in alicia’s estimate? round your answer to the nearest tenth of a percent.

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

In angle pqr find the measure of