I need help please image is the question

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation