Start by calling the unknown amount 'x'. We can then set up a relationship to represent the question:

or

and then solve for x, by dividing both sides of our equation by 0.3


213 is 30% of 710
To check:
Answer:
9/11 I think!
Step-by-step explanation:
54/66= 9/11
Answer:
1.85
Step-by-step explanation:
20.2-18.35=1.85
Answer:
3:1
Step-by-step explanation:
Take the fraction and simplify it:
12/4 = 3/1
Answer:

Step-by-step explanation:
Whe have the function 
To solve this equation we must factor.
To factor, we need to find the points where the function is equal to zero. So we use the quadratic formula

Where:
a = 3
b = -6
c = 2
Then

finally the correct answer is 