Which of the following expressions evaluates to true when the strpart variable contains the string “12ax45”? a. strpart like "99[a-z][a-z]99" b. strpart like "" c. strpart like "##[a-z][a-z]##" d. none of the above

What is a number system, and what is the total number of digits used in this system called? a number system is a system that uses different (options: a) numbers b) symbols c) codes d) digits e) alphabets) to represent different numbers. the total number of digits used in a number system is known as its (options: 1) processor 2) converter 3) radix 4) least significant digit 5) most significant digit)