Answer:
It is s +144=290
Step-by-step explanation:
434 and plese add me as a friend
Question 1

Distributing 2 on 5y -2, we will get

But student get

So the student make an error in step 2 .
Second question

To get rid of y, we have to multiply first equation by -8 and add the resultant equation with equation Q .
That's easy, here let me show you a example:
Answer:
C I think
Step-by-step explanation:
Sorry if it's wrong
Answer:
Square root of 16.
Step-by-step explanation:
Square root 16 = 4 which is rational.
All the rest have an irrational square root.