The answer is (7/9, -5/9)
(7 over 9 and negative 5 over 9)
It would be the letter A.
I hope this helps! <3
With cross multiplication you can find that they are the same. In both equations, x would be 100.
The answer is c. its very simple.
210 days* (1 week/ 7 days)* (50 inches/ 100 weeks)= 15 inches.
(Note that the units cancel out so you get the answer)
Final answer: 15 inches~