Obtain the angle between the lines 2y-4x+6=0 and y-2x-5=0

Solve the x in the equation x^2+14x+17=-96

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

What is the slope of the equation y =