Mr. randall bought 4 shirts, which were on sale. the shirts were originally priced $20. the salres price of the shirts was $5 dollars less than the original price. write and find the value of an expression for the total amount that mr. randall paid for the shirts. (was supposed to be math)

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