Sandra saves 12% of her salary for retirement this year jer salary was 3,000 more than in the previous year, and she saved $4,200. Wjat was her salary in the previous year?
Write an equation and what was Sandra´s salary the previous year?
.Um I don't feel like explaining but I can give you what I THINK the equation is:
"x" represents her last year's salary...
(.12) (3000 + x) = 4200