Step-by-step explanation:
1. 90+65= 155°
2. π+ π/6 = 7π/6 or 210°
3. 24+180=204°
4. 3π/2 + 2π/9 = (27π+4π)/18 = 31π/18
or 310°
Answer:
A
v=πr2h
r=(3)²* 5
45π unit³
Answer: 19
450=65g
no 6 hours
no it would be 6 hours
25% = 7.5 hours
5% = 1.5 hours
7.5 - 1.5 = 6 hours
