Linear pairs make a supplementary line
I say the third one because the end-points start where they are supposed to start/ end.
1000 = 2*length + 2*wudth
therefore
1000 = 2*150 + 2* width
width = ( 1000 - 300)/2
= 700/2
width = 350
Well in order to round 9.42 to the closest whole number we must know that. anything below 5 we round down and 5 and up we round up
So 9.42 becomes 9
of if your wanting to round to the nearest tenth it would be 9.4 you drop the 2 because you rounded down since it was lower than 5.
