Stanley makes a $500 investment and then carefully tracks the value as time goes by. At first, the value of Stanley's $500 investment changes by -$4 each day. After how many days, did value of the investment change by -$28?

What is the solution to the equation 9^(x+1) =27

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2