Change to decimals and put in order of smallest to biggest: 7/5 3/8 5/9 3/16

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Hi, can anyone show me how to do this problem? 100 points for this. in advance