The PMT function calculates the payment for a loan based on constant payments and at a constant interest rate

Which standard library header file contains function prototypes for conversions of numbers to text and text to numbers, memory al-location, random numbers and other utility functions.

a) b) c) d)

Consider the previous question, but include + or - letter grades. A+ is 4.25, A- is 3.75, B+ is 3.25, B- is 2.75, and so on.

a.Why can’t we use one switch statement with no other conditionals to convert these additional letter grades? b. Write a fragment of code that will do the conversion using a multibranch ifelse statement. c. Write a fragment of code that will do the conversion using nested switch statements.