4 inches by 9.375 is the answer because you divide the both numbers by 8
N+19 >= 8
since their is no greater than or equal sign i did that^ hope u understand
1) Lets say there is point A that is perpendicular to WX and has W in it.
2) To find YA, we have to 19 - 11 = 8
3) Do Pythagorean theorem to find WY, which is:

This is equal to
42.76 in decimal
Ab/ac = ae/ad = be/cd
4/ac = 6/15
6 ac = 60
ac = 60/6 = 10
ac = 10
The slope of this equation would be m = -1