Answer:
x = 10.8
Explanation:
using cosine rule:
5.6*1 2/5 = 5 3/5 * 1 2/5 =28/5 * 7/5 = 196/25 = 784/100 = 7.84 or 7 21/25
8.20=0.1s+5 <- equation
32 songs
Step-by-step explanation: