Question 1064196
Length is 8, and width is w.
{{{8w=280}}}
{{{w=35}}}------the width of the given rectangle.



<i>Then she breaks the rectangle into smaller rectangles </i>
That part is not clear.



<i>...and divides each smaller area by 7</i>
The width w is integrally divisible by 7.
{{{35/7=5}}}


The new smaller rectangles may each be  5 units by 8 units, and each will have area of {{{5*8=highlight(40)}}} square units.