What is the circumference, in feet, of the circle. Round to the nearest tenth

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?

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c