The average age of three people running for election is 42. A fourth person joins the race and the average drops to 40. What is the fourth person's age?
A 32
O B. 34
O c. 35
ОО
O D. 36
O E 40

Need plz been trying to do it for a long time and still haven’t succeeded

What is the output, or dependent variable of quantity? 1: x 2: f(x) 3: y

The image of abc is a'b'c. what transformations would result in this image? abc is reflected over the line x = 1, then is rotated -90° around the origin. abc is reflected over the line y = x - 1, then t: (x, y) → (x - 1, y - 1). abc is rotated 90° around the origin, then is reflected over the y-axis. abc is rotated -90° around the origin, then is reflected over the line y = -1.