factor the following quadratic expressions completely if possible, if it connor be factored explain why not. y2 + 7y +7

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

What is the measure of angle tvu shown in the diagram below

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