Answer:
20 years
Explanation:
1) First we need to find the multiplier for 4% so:
100+4 =104 and then divide by 100 which is 1.04
2) set up the euation as normal:
100000x 1.04^n= 213,022
and then you just do trial and error in the n to see how many years it will take so:
100000 x 1.04^1= 104000
which is too low so you make the number of years higher
100000 x 1.04^20 = $219112.3143 which is the answer because
100000 x 1.04^19= $210684.92 and thats just a little under 213,022 so 20 years makes it go over $213,022 and so 20 years is the answer.