A package of pens cost $1.09. Milio's work to find the unit price of the pack is shown below pens
$19€ - 3160
7-8-$1.09
7 - $7 34
Where did Mill make his first error?
He assumed the pens are equally priced.
He wrote the une rate incorrectly
* He made a piace value error when dividing
He multiplied instead of doviding

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

the correct answer is b.

this is because an open circle means < or > & since the line goes left it is < -3.

the next one has a filled circle so it can only be ≥ or ≤ and since the line goes right from 1 it is ≥ 1

hope that