Translate the sentence into an inequality. Eight times the sum of a number and 19 is at most 25.
Use the variable x for the unknown number.

to complete this square you have to rotate about the origin 270 degrees clockwise.

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q

more i think

hope this !