For the following system, subtract the second equation from the first equation.
3x - 4y = 7
3x + 2y = -5
what is the resulting equation in simplest form?

-6y = -12
-6y = 12
-2y = -12
2y =12

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.