To which subsets of the real numbers does the number (square root) 42 belong?
a. whole numbers, natural numbers, integers
b. irrational numbers
c. rational numbers
d. whole numbers, integers, rational numbers

B.Irrational number

Step-by-step explanation:

We are given that a number

We have to find the given number belongs to which set

We know that Rational number is that number which can be written as form where q is not equal to zero and p,q  belongs to integers.

Irrational number : It is that number which cannot be written in form.

Given number is which can not be written in

Hence, the number belongs to irrational numbers set.

the barter

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5