Questions $1$ and $2$ are provided in the photo plz answer if correct i will upvote answer question $3$ and $4$ too plzzxx its not too much...

$$ question $3$ assuming that the marketing stidies are correcr what is the maximum annual profit that the company can earn? At how many units and at what is selling price per unit would the company generate this profit? Maximum profit....

number of units....

selling price per unit...

question $4.$ What would be the break even point in unit sales and in dollar sales using the selling price you determined in $3$ aboveee the selling proce at the level of maxmium profit...??? Round intermediate cal and final answers to the nearedr whole number plzzzz answer $4$ questionsssssss plss i will upvote right away if its correct...