Find 1/8 of 12. express your answer in simplest form. 1 1/2 2/3 1/96 12/8

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x

Im so bad at fractions they are not my best math thing to work on