Answer:
what do you need help with,where is the question
Step-by-step explanation:
(71+x)/2=78
71+x=156
x=85
Th student needs to score a min of 85
Answer:
Is there a picture you can give us? I will try to answer it once you do! :)
Answer:
A
Step-by-step explanation:
A
rational number is any number that can be written as the
ratio between two other numbers i.e. in the form

Part A:
An easy choice that makes sense is 7.8, right in the middle. To prove that it's rational we need to write it as a ratio. In this case we have

Part B:
We need a number that can't be written as a ratio (because it neither terminates nor repeats). Some common ones are

,

,

and

so it makes sense to try and use those to build our number. In this case

works nicely.