Answer:
1. B
2. Reflection
3. Refraction
Step-by-step explanation:
I think totoly 2 because u need all three of them.
Answer:
33 = r
Step-by-step explanation:
The circumference is given by
C = 2 * pi *r
207.24 = 2 * 3.14 *r
207.24 = 6.28 *r
Divide each side by 6.28
207.24/6.28 = 6.28 r /6.28
33 = r
Opening brackets;
18p+9-3p=4p-6
18p-3p+9=4p-6
15p+9=4p-6
Putting like terms together;
15p-4p=-6-9
11p=-15
p=