Can someone plz help me with these

What is the simplified expression for 6(2(y+x))

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.