Can anybody me understand this & what the correct answer is? if your good at these i have more i need !

C. Top left X+6)(X-5)top right x^6 bottom left x^2. Bottom right (X+7)(X-6). The two X' from the bottom cancel diagonal with the x^6 making four x^4 left on top since the parade theses are different they don't cancel and remain the same as in the beginning X^2+X-30

110698.56 square miles

step-by-step explanation:

multiply 3.8 by 102

387.6

multiply 2.8 by 102

285.6

multiply those two to get

110698.56 square miles