Margaret manages a second-hand clothing store. the store advertises that is you buy 3 items, you will get 15% off the most expensive item, 20% off the second most expensive and 30% of the cheapest item. you choose three items costing $10.00, $25.00, and $12.00. how much will you pay for the three items?

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?