Jack borrowed a sum of 12000$ from a financing company for 3 years at 15% per annum. what is the total interest he paid in 3 years?

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?

15/16 as a decimal rounded to the nearest hundredth

Explain why the factor 1.5 is broke. into two numbers in the model.