You mean like the tricuspid and mitral (bicuspid) valves?
        
                    
             
        
        
        
Answer:
The answer is C(x) = 60x + 14 and the answer to the second one is 7 days.
Step-by-step explanation:
C(x) =60x + 14
434 = 60x + 14
-14                -14
420 = 60x
/60      /60
7 = x
or
x = 7 days
 
        
                    
             
        
        
        
There are 52 cards in the deck.
 Picking a spade would be 13/52 which reduces to 1/4
After the first card is picked there are 51 cards left, picking a club would be 13/51
Picking both would be 1/4 x 13/51 = 13/204
The answer is C.
 
        
             
        
        
        
Answer:
y = -2x - 10
Step-by-step explanation:
Slope intercept form of equation is of form 
y = mx+c 
where m is the slope of line and c is the y intercept of the line.
Y intercept is point on y axis where the line intersects the y axis.
_____________________________
Given equation 
y = -2x +4 
comparing it with y = mx+ c
m = -2 , c = 4
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when two lines are parallel, their slopes are equal.
Let the equation of new line in slope intercept form be y = mx + c
Thus slope of of new required line is -2
Thus m for new line is -2.
now, equation of required line : y = -2x+c
Given that this line passes through (-4, -2). This point shall should satisfy equation  y = -2x+c. 
Substituting the value of (-4, -2) we have
-2 = -2(-4)+c
=> -2 = 8 +c 
=> -2 -8 = c
=> c = -10.
Thus , equation of required line is  y = -2x - 10.
 
        
             
        
        
        
9514 1404 393
Answer:
   (12480 -3600)/48
Step-by-step explanation:
Assuming a 0% interest rate, the monthly payment will be 1/48 of the amount remaining after the down payment:
   (12480 -3600)/48
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= 185