Respuesta :

Answer:

I think it would be 19 since 75-57 is 18 and 36-35 is 1 I added those two numbers and got 19

She needs to buy 19 extra inches to build around her new garden.

Explanation:

She needed 57 by 35 inches at first, but now she needs 75 by 36 inches.

75 - 57 = 18.

36 - 35 = 1.

18 + 1 = 19.