Acontestant on a game show has 30 point she answers the question correctly to win 15 points then she answer the question incorrectly and loses 25 points what is the contestants final score

Do,h = (7, 9) (14, 18) the scale factor is

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Find cot x if sin x cot x csc x = √2