Tolong Di Jawab Semunya Saya Butuh Bantuan

1. berarti P = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29}. jadi:
a. 2 ∈ P
b. 3 ∈ P
c. 4 ∉ P
d. 5 ∈ P
e. 6 ∉ P
f. 7 ∈ P
g. 8 ∉ P
h. 11 ∈ P
i. 13 ∈ P
j. 15 ∉ P
k. 16 ∉ P
l. 17 ∈ P
m. 18 ∉ P
n. 19 ∉ P
o. 21 ∉ P
p. 27 ∉ P
2.
a. B
b. B
c. S
d. S
e. S
3.
a. A = {1, 2, 4, 8, 16, 32, 64}
b. B = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47}
c. C = {Jakarta, Kuala Lumpur, Bangkok, Manila, Singapura, ...}
d. D = {kucing, anjing, sapi, kerbau, kuda, ...}
e. E = {Aceh, Sumut, Riau, Kepulauan RIau, Sumatera Barat, ...}
4. 
a. n(A) = 8
b. n(B) = 10
c. n(C) = 6
d. n(D) = 5
5.
a. A = {15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95}
maka n(A) = 17
b. B = {17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43}
maka n(B) = 14
c. C = {Serang, Jakarta, Jogjakarta, Bandung, Semarang, Surabaya}
maka n(C) = 6
d. D = {J, A, K, R, T, I, B, U, K, O, N, D, E, S}
maka n(D) = 14
e. E = {Merkurius, Venus, Bumi, Mars, Yupiter, Saturnus, Uranus, Neptunus}
maka n(E) = 8
f. F = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...}
maka n(F) = tak terhingga
g. G = {3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ...}
maka n(G) = tak terhingga