Jay had $80. He spent 2/5 to buy new running shows. How much did Jay spend?

Pls! does anybody know a shortcut for answering these types of questions in the future?

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal,mutualistic,or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay