Mrs. Macleod bought 15 dozen oranges at $1.00 a dozen. She threw away 20 rotten oranges and then sold the rest at 8 oranges for 85 cents. How much profit did Mrs. Macleod make?​

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)