Answer: $ 2.20
Step-by-step explanation: 31.80-18.60= 13.20
13.20 divided by 6= 2.20
——————-
2.20 x 6= 13.2
13.20+ 18.60= 31.80
 
        
             
        
        
        
Answer:
Right, Isosceles 
Step-by-step explanation:
The side lengths of this triangle : 2√8 2√5 2√5
Scalane triangle has all side lengths in different measure but in this triangle we have two side lengths equal 
Right triangle has a right angle with 90° and the square measure of hypotenuse is equal to sum of the square length of two side lengths in this triangle since 2√5 + 2√5 = 2√8 we can say that this is a right triangle. 
Isosceles triangle are triangles with two side lengths equal to each other 
Equilateral triangles are triangles with all side lengths equal to each other but we know one of the side length in this triangle is different 
so the answer is Right and Isosceles.
 
        
             
        
        
        
Answer:
78
Step-by-step explanation:
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
Let n be unknown divisor and a be the same remainder, then

Subtract a from all equalities:

Subtract them:

The greatest number is 6. When you divide numbers 63, 45, 69 by 6, you'll get remainders 3, 3, 3, respectively.