Four red boxes and two black boxes cost $40. five red boxes cost $20. all red boxes cost the same. all black boxes cost the same. what is the ratio of the cost of a red box to the cost of a black box.

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

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?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?