If M is the set of all square numbers less than 80 and N is the set of all non-negative even numbers that are under 30, a Write the lists of all elements of M and N,

1. M = {(–8)^2, (–7)^2, (–6)^2, (–5)^2,

(–4)^2, (–3)^2, (–2)^2, (–1)^2, 0^2, 1^2, 2^2, 3^2, 4^2, 5^2, 6^2, 7^2, 8^2}

2. N = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28}

Step-by-step explanation:

Data obtained from the question.

M = {set of all square of numbers less than 80}

N = {set of all non-negative even numbers that are under 30}

The elements of set M and N can be obtained as follow:

1. Square of all numbers less than 80 = (–8)^2, (–7)^2, (–6)^2, (–5)^2,

(–4)^2, (–3)^2, (–2)^2, (–1)^2, 0^2, 1^2, 2^2, 3^2, 4^2, 5^2, 6^2, 7^2, 8^2

Thus, we can write set M as:

M = {(–8)^2, (–7)^2, (–6)^2, (–5)^2,

(–4)^2, (–3)^2, (–2) ^2, (–1)^2, 0^2, 1^2, 2^2, 3^2, 4^2, 5^2, 6^2, 7^2, 8^2}

2. All non-negative even numbers that are under 30 = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28

Thus, we can write set N as

N = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28}

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.