Answer:
180 Square Feet
Step-by-step explanation:
For Rectangle:
l = 9 ft
b = 20 ft
Area of Rectangle

Why are standardized units of measure important to scientists?
Answer:
its 42
Step-by-step explanation:
315-18+81=378
Correct mean =378/9=42
252 divided by 9 is 28
Firstly, I muplity 20 and 9.
I have 180.
Then I also muplity 8 and 9.
I got 72.
Then I add 72 and 180 which got me 252.
(I hope this helped!)