Find the missing parameter: u = 50.0, z-score of 1.75 and a value of 53; find the standard deviation

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

(x-5)1/2+5=2 what is possible solution of this equation

Asap will give brainiest to first person to answer what is the measure of angle b in the triangle? enter your answer in the box. m∠b=