5280 feet 
1 mile is equal to 5280 feet
i think that’s what you’re asking
        
             
        
        
        
Answer:
A. y=-1/3x+10
Step-by-step explanation:
Perpendicular gradients(slopes) are negative reciprocals so 
m=-1/3  then use the point (6,8) to find the equation of the line
y=mx+b
8=(-1/3)(6)+b
8=-2+b
b=10
y=-1/3x+10
 
        
             
        
        
        
Percent decrease : (original number - new number) / original number)...x 100
(13.00 - 7.50) / 13.00 = 5.5/13 = 0.42....x 100 = 42% decrease
        
             
        
        
        
Answer: There are 97 nickels and 108 quarters.
Step-by-step explanation:
Let x = Number of nickels, y = Number of quarters.
As per given,
x+y = 205    ...(i)
0.05x+0.25y = 31.85 ... (ii)    [1 nickel = $0.05, 1 quarter = $ 0.25]
Multiply (ii) by 20, we get
x+5y=637   ...(iii)
Eliminate (i) from (iii)
4y = 432
⇒ y = 108   [Divide both sides by 4]
Put value of y in (i), we get

Hence, there are 97 nickels and 108 quarters.