Answer:
62.83185
Step-by-step explanation:
C=2πr=2·π·10≈62.83185
The third one I think but I am not sure
Answer:
6
Step-by-step explanation:
3k + 5 = 23
3k = 23 - 5
= 18
k = 18/3
= 6
<em>Here's your answer :)</em>
Answer:
y = 3
x = 5
Step-by-step explanation:
40y + 20 = 60 y - 40 because opposite angles are equal
solve this equation
40y + 60 = 60 y
60 = 20 y
3 = y
8x = 2x +30
6x = 30
x = 5
