Answer:
-200%, -2, and -2. those are the answers in order
Answer:

Step-by-step explanation:
In right triangle XZW, the height WY is the geometric mean of segments ZY and XY.
Hence,

Answer: The new amount is 0.78*5500. Which is 4290. The decrease is 5500-4290=1210.
Answer:

Step-by-step explanation:
Given

See attachment for illustration
Required
Find 
The sum
a point is 
So:

Angle a is at right angled.
So:

Collect like terms

