Answer:
C. O.5s
Step-by-step explanation:
If the wave length is 100m and it goes at a speed of 200m/s then it will only take 0.5 seconds because 100 is half of the speed of 200
Answer:
1/2
Step-by-step explanation:
There are 6 numbers and the chances of rolling a 1, 2 , or 3 is 3/6.
3/6 simplifies to 1/2
see how it do it in the picture and hope it helps you..