Answer:
C. 13
Step-by-step explanation:
Apply pythagorean theorem.
Thus:
Diagonal AV = √(12² + 5²)
AV = √(144 + 25)
AV = √169
AV = 13 cm
 
        
             
        
        
        
X = the number of months the tire was used
y = the thickness of the tire tread
y = -(3/7)x + 20
Substitute x for 20 (the number of months the tire was used) and solve for y.
The next question: Substitute x for 49 (the number of months the tire was used) and solve for y.
        
             
        
        
        
Answer: 30 kilograms
explanation: Each 1000 grams converts to 1 kilogram
        
             
        
        
        
Simple...
change them all into fractions or decimals...
0.7---> 0.7

-->>0.77

--->>0.875
Ordering from greatest to least....
0.875-->>0.77-->>0.7

-->>

-->>0.7
Thud, your answer.