Use substitution to solve the following system of equations.
d + e - f = -3
e = f + d + 7
f = 2e - 6
a. d = 3, e = -4, f = 2
b. d = -4, e = 3, f = 2
c. d = -2, e = 4, f = -5
d. d = -5, e = 4, f = 2

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual