Corresponding measures have the same ratio.
.. (x -1)/4 = (2x +1)/10
.. 5(x -1) = 2(2x +1) . . . . . . multiply by 20
.. 5x -5 = 4x +2 . . . . . . . . eliminate parentheses
.. x = 7 . . . . . . . . . . . . . . . add 5 -4x
x = 7
3(4x+5)+2
3•4x=12x
5•3=15+2=17
Answer= 12x + 17
You must do 1/2 times base times height
6x+3-(8x-5)
=
-2x(x-4)
=
2x+8
=
p = 2
