What is the probability of picking 5 of diamonds form deck of 52 cards

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.