Which statement is true about the ratios shown

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

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