In step 2, you are adding 35.10 and 84.60. You carry the 1 to the 1's place after you add up the tenths and the hundreds place.
To rotate a figure
90 degrees(-y,x)
180 degrees(-x,-y)
270 degrees(y,-x)
If your original point is (1,2) or example and you want to rotate it say 270 degrees the final point would be (2,-1)
Hope this helped!!!!!
Find how many square feet it is
assumng the table is a rectangle
area=legnth times width
area=10 times 17=170
16 per 1 square foot
16 imes 170=2720
answer is $2720
Can you try rewording this question?