Tolong bantu ya nomer 4 - 7 please

Nomor 4
Matematika = 5 / 6,5 × 100 % = 76,9 %
Bahasa Indonesia = 6,5 / 8 × 100 % = 81,25 %
IPA = 7 / 8,5 × 100 % = 82,3 %

Jawaban = IPA

Nomor 5
% selain buku merah dan biru = 100 - 25 - 30 = 45 %

Total Buku
= 45 / 100 × X = 27
= 45X / 100 = 27
= 45X = 27 × 100
= 45X = 2700
= X = 60 buku

Nomor 6
Persentase Kelereng
= 1/4 × 100 % = 25 %
= 25 / 100 × 40 = 10 siswa

Persentase Lompat Tali 
= 100 - 30 - 20 - 15 - 25 = 10 %
= 10 / 100 × 40 = 4 Siswa

Petak Umpet
= 30 / 100 × 40 = 12 Siswa

Ular Tangga
= 20 / 100 × 40 = 8 Siswa

Gobak Sodor
 = 15 / 100 × 40 = 6 Siswa

Nomor 7
Gobak Sodor = 15 / 100 × 360 = 54°
Ular Tangga = 20 / 100 × 360 = 72°
Petak Umpet = 30 / 100 × 360 = 108°
Kelereng = 25 / 100 × 360 = 90°
Lompat Tali = 10 / 100 × 360 = 36°