What is the length of AC

Solve the system of equations y= 3/2 - 1, -x+ y =-3

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

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.