I believe that it is D, so sorry if it's wrong, I haven't done this in a while.
If Gina's age is x and Abigail is younger than Gina, Abigail's age will be represented by x-1 given that their ages are consecutive integers.
Translating the fact that the the difference of the square of Gina's age and eight times Abigail's age is 17, we will have the following equation:

We can use the equation above to find Gina's age.
Answer:
its a and d obvioudly the price of the corn doesnt makethe corn be planted different
Step-by-step explanation:
so the soil causes the corn to grow in b if the soil was different then that would have caused it to grow less so A nd D