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Answer:
Step-by-step explanation:
4(0) + 3y=12
4x0=0
0+3y=12
3 x 4=12
y=4
1000 g=1kg
to convert to kg
1kg/1000g=conversion factor
multiply
6900g times 1kg/1000g
grams cancel
6.9 kg
people this year = 10* people last year
people this year = 10* 387
people this year = 3870
7
The process
1-2(2x1)+(2)^2