Yes because she increased the number of stairs she went up..and decreased the number by going down
Shaded=big rectangle-white rectangle
area recangle=base times height=(x+10) times (2x+5)=2x²+25x+50
area white=(x+1) times (x+1)=x²+2x+1
big-white=(2x²+25x+50)-(x²+2x+1)=
2x²+25x+50-x²-2x-1=
x²+23x+49
de area is x²+23x+49
(1/2)^2 -6(2- 2/3)
simplify exponent & get common denominators for 2&2/3
(1/4) -6(6/3-2/3)
(1/4) -6(4/3)
multiply
1/4-8
get common denominators again & subtract
1/4 - 32/4
= -31/4 or -7 3/4
im solving now almost done