Answer:
his total income by the end of 4 years will be: $2622.
Explanation:
A man earns a base salary of $2000, and every year he got a raise of 7% on his total income.
The first year, he will earn: 1.07($2000) = $2140
The second year he will earn: 1.07($2140) = $2289.8
The third year he will earn: 1.07($2289.8) = $2450.086
The fourth year he will earn: 1.07($2450.086) = $2621.59202
Therefore, his total income by the end of 4 years will be: $2622.