.12×10^5
... i got this by taking the first number 8 and then counting the places behind the 8 which would be 5 so than you move the decimal place by 5 so you get 8.12 then you show theirs 5 places behind the 8 by adding the 10^5 so you get 8.12×105
Answer:
x = 180 -56= 124..... linear pair
y= 180 -39 =141 linear pair
($9.20) 2 = $18.40 ...................
