Answer:
The answer is 8.25 ( No CALCULATORS) - solves from my brain :)
Step-by-step explanation:
99 divided by 12 in decimal = 8.25
99 divided by 12 in fraction = 99/12
99 divided by 12 in percentage = 825%
792m^2
Seperate your 2 rectangles
Large one is 18*30
Small one (60-18)*6
18*30 = 540m^2
42*6=252m^2
2x =12
x = 12/2
x= 6
I hope I helped you^_^