George Washington was the first president of USA.
first subtract the last equation from the first. this gives:-
-x + y = -8 .....................(1)
Then multiply the first equation by 2 and add it to the 2nd equations This gives
9x = 18
so x = 2
and from equation (1) y = -8 + 2 = -6
Substituting for x and y in the second equation
z = (24 -5(2) -12) / 2 = 1
Answer is choice b.
The answer is D it shrinks to 35
I think it's 150! Hope this helps :)
Assumed
PW as 100
FW as twice PW as 200
answer is 7.27254 years
manually take the log of both sides and solve for n