Ty received test grades of 83%, 74%, 77%, 77%, and 74%. a. what grade would he need to make on the sixth test to get a C if a C is at least 75% but less than 80%?

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

How many ordered pairs of positive integers satisfy xy=32?

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?