Answer:
x=7y+10
Step-by-step explanation:
x−7y=10
x−7y+7y=10+7y
x=−7y+21/2
12/2 is a fraction
2x+14y=21
2x+14y+−14y=21+−14y
2x=−14y+21
2x2=−14y+21/2
( 9 x^ 2 + 4 y ^2 ) ( 3 x + 2 y ) ( 3 x − 2 y )
3/5
I think you would have to convert 14.9 kg to fraction and multiply by 3/4
i think it's b
