So basically you know that 25 x 17 is 425. So all you would do is estimate! It's super simple. Just do 25 x 17, then put your estimate in the estimate box. 5 or higher it goes up, 4 or lower it goes down, so for your estimate I would probably put 430. Hope this helps! :)
Are you being asked to complete the question so that it would make sense? because it would make sense to me to be either a or b
if not, then could you please specify?
Get Y by itself so it' should look like this
5y=2x+7 after then you have divide 5 onto the right side and it should look like
Y=2/5x+7/5
Answer: 
-3 times the square root of 5
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Explanation:
Let 
Replace all the root 5 terms with x and we go from
to
From here, combine like terms to get
and the last thing to do is replace the x with sqrt(5)
Meaning that,
Answer:
It is the branch of math that is in charge of dealing with letters known as variables.
Step-by-step explanation:
These variables are used to fill in the place of missing numbers in an equation or solution.Algebra is widely used all over the world in schools.
