3,4,4,6,8,9 work out the median

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

Solve for x where 0 equation: cot^2x+2cotx+1=0