If f(x)=5×^2-3 and g(x)=×^2-4x-8, find (f-g)(x)

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()