Answer:

Step-by-step explanation:
Given


Required
Determine the probability of hit in next at-bat
This question illustrates theoretical probability and the required probability is calculated using:

In this case, we have:



Answer:
C
Step-by-step explanation:
use this formula Sn=n/2[2a+(n-1)d]
here,d=a2-a1 and n= no. Of terms
Step-by-step explanation:
S8=8/2[2(1)+(8-1)2]
S8=64
Answer: 40 balloons
Step-by-step explanation:
x=number of balloons
2*4=8
x=(64-50-8)/0.15
x=6/0.15
x=40