a. When the density is higher, the speed of sound is lower.
Answer:
1. 42-1 = 41 38-1 = 37
2.
Explanation:
You take away 42 from 1 which will give you 41 and take away 38 from 1 which will give you 37
8) Principal
9) Principal
10) Principle
(Not sure about 9 though)
