You would use the formula P(1+r/n)^nt=A I explained it in the picture and if the number is growing it is 1+r/n and if it’s not it is 1-r/n. Also if you don’t know the formula you can do it year by year which I also showed but it will take a long time and it’s easy to make a mistake. The answer would be A because if you plug the numbers into the formula you will get 4045.56 for plan b then you subtract 3000 and round, getting 1046. It is the formula of exponential growth/decay if you want to research further.
4(x+5)+6=2(2x+3) 4x+20+6=4x+6 4x+26=4x+6 Get letters on left...so subtract 4x from right and do same to left 26=6 no solution because 26 does not equal 6