Answer:
41
Step-by-step explanation:
The answer is 2,800 or 2800
45 handshakes are possible
Answer:
X=-7
Step-by-step explanation:
X + 142=135°
X=135-142
X=-7
So the value of X is -7
Answer:
1.5 m/s or 1.5 meters per second
Step-by-step explanation:
Distance/Time=Speed
30m/20s= 1.5 m/s or 1.5 meters per second