8. Which of the given sets of whole numbers is closed under addition? If the set is not closed, give an
example of two elements from the set whose sum is not
in the set.
(a) {10, 15, 20, 25, 30, 35, 40, ...}
(b) {1, 2, 3, . . . , 1000}
(c) {0}
(d) {1, 5, 6, 11, 17, 28, ...}
(e) {n EN n 2 19}
(f) {0,3, 6, 9, 12, 15, 18, ...}

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)

i think u have 12 apples sorry again i don't really know if it correct i'm just tryna hrlp people out.

b is the correct answer