Step-by-step explanation:
To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.
21 and -14 add to 7 and sum to -294 when multiplied
The perimeter and area of the top of the child's desk are 120 inch and 864 inch² respectively.
<u><em>Explanation</em></u>
Dimensions of the top of the adult's desk : Length = 54 inches and Width = 36 inches.
As the dimensions of the child's desk are of the dimensions of the adult desk, so....
Length of child's desk inches and
Width of child's desk inches.
So, the perimeter of the top of the child's desk inches.
and the area of the top of the child's desk inch²