Complete the ratio 4:32=1:?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?