In the word mississippi what is the ratio of letter p's two letter i's

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

The highest point on earth is the peak of mount everest if you climb to the top you would be approximately 29,035 feet above sea level at remembering that amount is 5280 feet percentage of the height of the mountain would you have to climb to reach a point 2 miles above sea level

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save