Function w gives the weight of a cat, in kilograms, when it is m months old. Which statement represents the meaning of the equation w(7)=4 in this situation?

a. The cat weighs 7 kilograms when it is 4 months old

b. The cat weighs 4 kilograms when it is 7 months old

c. The weight of the cat has been 7 kilograms for 4 months

d. The cat weighs 4 kilograms when it is 7 year’s old

Can u send a screenshot of it? !

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.