Answer:
wait im sorry i tried to leave answering the question but accidently pressed add your question
Step-by-step explanation:
Cara's brother is 7 years old.
14 is twice as much as 7 (7 * 2 = 14).
Answer:
Step-by-step explanation:

Answer:

Step-by-step explanation:
For this case we want to find this probability:

Because they want the area to the left of the value. We need to remember that the normal standard distribution have a mean of 0 and a deviation of 1.
We can use the following excel code: =NORM.DIST(-1.55,0,1,TRUE)
And we got:

The other possibility is use the normal standard table and we got a similar result.
Answer:
16.8 ÷ 8 = 2.1
( For the other ones with the " tenths " confuses because I dont know where its going gl l though )