Please Help I mark Brainlest If anyone Knows the answer

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

What’s the domain of this function? fast

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?