Its c++ please do it fast

Which type of computing device is best suited to having a digital pen as an input device? a. personal computer b. personal digital assistant c. smart television d. laptop e. mobile phone

Provide an example of a project that combines the three principles of lean six sigma with business project management (bpm) and services oriented architecture (soa). identify the elements of the project that comply with each of three principles.

The “rule of 72” is used to approximate the time required for prices to double due to inflation. if the inflation rate is r%, then the rule of 72 estimates that prices will double in 72/r years. for instance, at an inflation rate of 6%, prices double in about 72/6 or 12 years. write a program to test the accuracy of this rule. for each interest rate from 1% to 20%, the program should display the rounded value of 72/r and the actual number of years required for prices to double at an r% inflation rate. (assume prices increase at the end of each year.)