Interest earned: $3250 Principal: $5000
Time: 10 years
Interest rate: ?
what is the interest rate??

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r