Answer:
12y+4x
Step-by-step explanation:
Multiply 4*3y and 4*x
Distributive property
He gets paid 24 dollars an hour 960/40=24
Answer:
It's the 3rd one using the formula 
Once you follow that step you need to multiply the exponent of 3 and 6 with the exponent outside the parenthesis..... which is why it's the 3rd one.
3 2/7 = 21/7
answer is 21/7