Step-by-step explanation:
-3(-x -3y) = 3( x +3y) = 3x+9y
Answer:

Step-by-step explanation:



1) Base
2) Exponent
3) Metric system
The percent of decrease on an item that went from $25 to $20 is 5 percent.
Answer:
The Answer Is B
Step-by-step explanation:
I Just Know Because I Was Teacher And This Is 5th Grade Work But Sadly I Cant Explain If You Get It Right Please Mark Me Brainliest