The answer to your problem is A because you must add them altogether but i might be wrong im just trying to help you out 
 
        
             
        
        
        
Answer: its x = 3
Step-by-step explanation:
The maximum or minimum of a quadratic function occurs at 
x
=
−
b
2
a
. If 
a
 is negative, the maximum value of the function is 
f
(
−
b
2
a
)
. If 
a
 is positive, the minimum value of the function is 
f
(
−
b
2
a
)
.
f
min
x
=
a
x
2
+
b
x
+
c
 occurs at 
x
=
−
b
2
a
Find the value of 
x
 equal to 
−
b
2
a
.
x
=
−
b
2
a
Substitute in the values of 
a
 and 
b
.
x
=
−
−
12
2
(
2
)
Remove parentheses.
x
=
−
−
12
2
(
2
)
Simplify 
−
−
12
2
(
2
)
.
Tap for more steps...
x
=
3
The maximum or minimum of a quadratic function occurs at 
x
=
−
b
2
a
. If 
a
 is negative, the maximum value of the function is 
f
(
−
b
2
a
)
. If 
a
 is positive, the minimum value of the function is 
f
(
−
b
2
a
)
.
f
min
x
=
a
x
2
+
b
x
+
c
 occurs at 
x
=
−
b
2
a
Find the value of 
x
 equal to 
−
b
2
a
.
x
=
−
b
2
a
Substitute in the values of 
a
 and 
b
.
x
=
−
−
12
2
(
2
)
Remove parentheses.
x
=
−
−
12
2
(
2
)
Simplify 
−
−
12
2
(
2
)
.
Tap for more steps...
x
=
3
 
        
             
        
        
        
In this case we have an ARM fixed for 6 years and adjust after the initial first 6 years every 2 years after. The basic idea behind a ARM is that the interest changes periodically, but since our ARM is fixed for 6 years, our going to calculate the monthly payment during the initial period using the formula: 

where

 is the monthly payment

 is the amount

 is the interest rate in decimal form 

 is the number years
First we need to convert our interest rate of 4% to decimal form by dividing it by 100%:

We also know from our question that 

 and 

, so lets replace those values into our formula to find the monthly payment:


We can conclude that the monthly payment during the initial period is $1071.58<span />
 
        
        
        
Answer:
15/3 + (6.5 + 4.2) - 0.6 = 15.1
Step-by-step explanation:
You can first reduce the fraction to 5 when you multiply by 3, then calculate what's in the parenthesis. So now you have 5 + 10.7 - 0.6, then just solve from left to right. Hope this helps 
 
        
             
        
        
        
0,-5 i hope this is can sorry if its wrong