Answer:
B) Have I convinced you that the study of grammar is important and well worth your effort?
Explanation:
Explanation:
The score of Sachin in consecutive five innings at 80, 90 ,100, 100 and M respectively.
The average of the five innings is 100.
We need to find the value of M.
Average = sum of observations/total no of observations
Sum of observations = 80+90+100+100+M
= 370 + M
Total no. of observations = 5
Put all the values,

So, he scored 130 in his last innings.
He scored (130-80 = 50) more in his last innings as compared to the first inning scored.
Answer: A). The use of “unfatherly" points out the that Tory is thinking only about his current happiness and not
thinking about the future of his son.
Explanation:
started rumbling the first we really sat down and did nothing the second time we ran outside but are friend Robenson pulled our hands and told us: “do not go because if the house fell and you guys are outside the concrete would probably kill you but if you guys are inside with the zinc roof you would have way more chances to survive.” Luckily the house did not fall.