-2\8 = a negative so we will multiply
Diagonal of the left triangle = ((8)^2+(7)^2)^0.5= (113)^0.5
x =( 12^2 -(113)^0.5)^2))^0.5=( 144- 113)^0.5= (31)^0.5= 5.57
For ur working, ur mistake lies in the line : x^2+12^2=10.6^2
It shld be 12^2= x^2+10.6^2
discount = price times % off
discount = 22.50 x 0.20
discount = $4.50
There are 42÷2=21 homes very month. As a result,21×6=126 homes every 6 months is your final answer. Hope it help!
