The correct answer is 1. Hope this helps.
Answer:
OR 
Let's solve the equation step-by-step:
First, you must find the square root:
x = ± 
We know that 10 × 10 = 100 and -10 x -10 is 100
that means that the square root is either 10 or -10
And we also know that 
are both 100
meaning that x = OR
Answer:
$3 per notebook.
Step-by-step explanation:
i would start by taking the two notebooks away from the imaginary cart.
then a $30 backpack=10 notebooks.
if so, then, each notebook=$3 because 3x10=30.
if you re-add the two other notebooks then it would be twelve $3 notebooks=$36 ($30 backpack and two $3 notebooks) and 12x3=36 and 36=36
The third angle is 105.
How do I know this?
Add 22 and 53:
22 + 53 = 75
All interior angles on a triangle should add up to 180.
Subtract 75 from 180:
180 - 75 = 105
105 is our answer.
Hope this helps! =)
