answer 
a phrase containing figurative language in which the word expresses a different idea from its exact meaning
 explanation \ reasoning 
idiom example: "break a leg"
this is an idiom because it is figurative language that doesn't exactly mean what it says. the person saying "break a leg" just means do really good that you'll "break a leg". in reality, we don't actually want you to break a leg. we just mean it figuratively.
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a number system is a system that uses different digits to represent different numbers. the total number of digits used in a number system is known as its radix .
a computer number system is a technique to represent numbers in a consistent manner using a group of various symbols called digits. a computer can comprehend the positional number system where there are digits. the value of the digit represents the digit itself, the position of the digit, and the base of the number system.
in a positional numeral system, radix or base is the total number of unique digits used to represent numbers. it is a fancy scientific term that refers to the base used by that number system.
wiki is bad thats all i know. it is an unreliable source and teachers say not to use it
step-by-step explanation :
put value of y=7/3