The answer is C. you can check the attached picture.
Answer: luke is twenty
Step-by-step explanation: Adam is 4 plus 6 is 10 ten times two is twenty
Boys are b
Girls are g
b + g = 120
2g = b
Substitute the second equation into the first
2g + g = 120
3g = 120
g = 40
Plug in g = 40 and solve for b
b + g = 40
b + 40 = 120
b = 80
There are 40 girls and 80 boys.
