Question 1:
For this case we must solve the following expression:
Adding 9k to both sides of the equation we have:
Subtracting 4 from both sides of the equation:
Multiplying by 3 on both sides:
Dividing between 22 on both sides:
Question 2:
For this case we have that by definition, the area of the rectangle is given by:
Where a and b are the sides of the rectangle.
If the area is at least we have:
That is to say: