Which set or sets does the number 1 belong to?

real numbers, rational numbers, integers, and natural numbers

integers and natural numbers

real numbers, integers, and natural numbers

rational numbers

option A

Real numbers, Rational numbers, Integers, and Natural numbers

Step-by-step explanation:

Real numbers: Any number that is rational or irrational

Example

real numbers consist of zero (0), the positive and negative integers (-3, -1, 2, 4), and all the fractional and decimal values in between (0.4, 3.1415927, 1/2).

Integers: All negative, positive numbers including zero

Example

…, -3, -2, -1, 0, 1, 2, 3, …

Natural numbers: All positive numbers except for zero

Example

1, 2, 3, …

Rational numbers: Any number that can be written as the ratio of two integers and that is terminating or repeating in decimal form.

1 is a rational number because it can be expressed as the quotient of two integers: 1 ÷ 1.

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step-by-step explanation:

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.