What is the slope for a line that is perpendicular to the line x=-6

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

Pranav and molly are selling pies for a school fundraiser. customers can buy blueberry pies and pumpkin pies. pranav sold 6 blueberry pies and 4 pumpkin pies for a total of $106. molly sold 6 blueberry pies and 3 pumpkin pies for a total of $90. find the cost of each of one blueberry pie and one pumpkin pie