Answer:
You can tell because, as x increases/decreases, y increases/decreases at the same rate EACH TIME. This way, no matter how many times the proportions increase OR decrease, the ratio between x and y always stays the same.
The answer for 2 is 192. The answer for 4 is 672.
Answer:
12
Step-by-step explanation:
15 feet total amount combined by pole and birdhouse
4 foot tall person makes 5 feet long shadow
5x3=15
4x3=12 so the birdhouse and pole are 12 feet
Answer: 
Step-by-step explanation:
Given: Original length =
inches
inches ( In improper fraction )
Length of piece cut from original =
inches

inches ( In improper fraction )
Length of piece leftover piece = (Original length ) - (Length of piece cut )

Hence, the leftover piece will be
long.