Help on this please,

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

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

To decrease an amount by 16% what single multiplier would you use