Determine if x=2 is a solution explain or show your reasoning -2(x-4)=4

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%