HELP ASAP There are 20 students on a school bus, 4 sixth graders, 10 seventh graders, and 6 eighth graders. Two students are chosen at random.

What is the probability of choosing two eighth graders?

The manager at gabriela's furniture store is trying to figure out how much to charge for a book shelf that just arrived. the book shelf was bought at a wholesale price of $ 1 4 7 . 0 0 $147.00, and gabriela's furniture store marks up all furniture by 6 0 % 60%. at what price should the manager sell the book shelf?

Troy has a 7/23 balloon mortgage on his $260,000 home. he has been making payments of $1323 each month and will have a balloon payment due for the amount of $198,569.

95/10 minus 1/23 i need the answer in a fraction and i need work.