Tolong dong no 13 sama 14 pake caranya yaa

Tolong dong no 13 sama 14 pake caranya yaa

$no.13 = \ diketahui = \ waktu = 2 : jam - : 30menit = 1.5 : jam \ jarak : = 96 : km \ kecepatan : = frac{jarak}{waktu} = frac{96}{1.5} = 64 : frac{km}{jam} \ \ no.14 = luas = frac{3}{4 } times pi times {r}^{2} \ = frac{3}{4} times frac{22}{7} times 28 times 28 = 1.848 : {cm}^{2}$