That is a display of the distributive property.
This is shown because when a number is written directly next to a set of parentheses, you must multiply each value inside the parentheses by the number on the outside.
In this case, 5(8-6) means that you must multiply 5 by 8, as well as by -6.
The right side of the equal sign in the given problem shows both of those steps separately, which is why it is a display of the distributive property. The correct answer is A.
27 - 2m when m = 3 is 27 - 2(3) = 27 - 6 = 21
The third choice is the correct one.
draw a line from the starting point on the hill to the finishing point, suppose the angel formed by this new line and the slope of the hill is x
sinx/150=sin27.4/200
sinx=(150*sin27.4)/200
x=sin-1[(150*sin27.4)/200]
the angle formed by the slope of the hill and the horizontal line is the sum of x and 27.4