Given the following measurements, calculate the minimum and maximum possible areas of each object. Round your answer to the nearest square whole square unit.
9.
The length and width of a book cover are 22.2 centimeters and 12 centimeters, respectively.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: