my teacher dosen't give no examples or formula's so I don't know how to solve it

Question

Crisana’’s financial advisor believes she should spend no more than 27% of her gross monthly income for her rent. She has determined that amount is $1,300 per month. Based on this amount and her advisor’s recommendation, what is Crisana’s annual salary?

Answer 1

$4,814.81

you set it up as part/whole = %/100

so 1300/x = 27/100

130,000= 27x

x= $4,814.81