Mr and mrs burkes yard measures 40 ft by 30 ft their garden in this yard measures 30 fr by 4 ft by how many square feet will the grass area decrease if the burkes increase the garden with by 5 feet?

20 Sq. Ft.

Step-by-step explanation:

The yard totals 1,200 sq ft. The original garden is 120 sq ft. It is increased to 140 sq ft. there is a difference of 20 sq ft. between the old and new garden. which is how much their grass area will decrease.

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)