25 points!!!

What is the scale factor from left to right?
20
24
20
30
36

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

How do u write a function for the reflection across the y axis

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 5 x + y = 7 {} 1 solution infinite