Attach a picture of the question please.
It is given to us that Tatenda takes t seconds to mow a square meter of lawn and Ciara takes c seconds to mow a square meter of lawn.
It is also given to us that Tatenda mows 700 square meters of lawn per week and Ciara mows 750 square meters of lawn per week.
Thus, if Tatenda mows 700
in a week, then that means he took
seconds to complete the mowing.
Likewise, if Ciara mows 750
in a week, then that means she took
seconds to complete the mowing.
To find the area of the figure, we divide it into two rectangles as follows:
And we find the area of each rectangle, which is given by:

Area rectangle 1:

Area rectangle 2:

Therefore, the shaded area of the diagram is:

Answer: 54 m^2