G(z)=(z−1)^5 −(z−1)^4 The polynomial function G is defined above. What is the product of the zeros of G?

I was doing SAT problems and I came across this one that I couldn't figure out. I attached the explain they gave me but it would be awesome if someone could explain it a little bit further. Thanks!

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set