Correct answer gets brainliest

Can someone me with the property questions for 12 13 and 14 plz

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?