Janes salary is increased by 4% to $15600. how much was her salary before the rise?

You have to make 4% into a decimal which is.04 then multiply 15600 x .04 which equals 624

Janes original salary was increased 4% and is now 15600 so
x(1+0.04)=15600
1 is the original + the increase
x (1.04)=15600
x=15600/1.04= $15000

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.