The answer is 3 because z to the y a-1
Answer:
-1
Step-by-step explanation:
If i = √-1, then i^2 = -1.
It is a similar triangle so the side length of the smaller triangle (x and x-2) are in the same ratio as the bigger triangle (2x+5 and 2x-1). As the ratio is the same, you can equate them and solve for x.
Answer:
B and D
Step-by-step explanation:

1:10 or 100:1000 so the point is to just add one zero to each side and you'll get it right