A family gathering ended at 1835. It lasted for 3h 55 min. At what time did the family gathering start?

Can someone explain to me how to do

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.

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.