Find the value of the trigonometric ratio.

A) 4/5
B) 4/3
C) 5/3
D) 3/5

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

What function has a range {yly< 5}? question on picture above^

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.