4 hours and 39 minutes before 7:53 p.m. Is 3:14 p.m.
So .. in 1foot, there are 12inches... thus, in 15feet, there are 15*12 inches
how many in 3/4 of an inch? well

solve for "x"
The a point is refrected through the line y = x, the new point is found by interchanging the x and y-cordinate of the original point. i.e. if the original point is (a, b) and is refrected through the line y = x, the new point will be (b, a).
Answer: So zero represents the point when locating a point on the number line like negatives and positives