Answer:
4m - 9 = 31 4m= 40 because m=10 10 times 4 = 40
Step-by-step explanation:
10
4m=40
m=10
a
1cm-----80000m
1cm-----8000000cm
1cm×3.275-----80km×3.275
3.275cm
C=75.36
A=452.16
C=2x3.14xr
××
A=3.14×
3.14x12x12=452.16
88.85 US$