So first we need to find the total before tax. Let's add up the two prices:

So we know that the total before tax is $381. Now we are told that the sales tax on these items is 6.5%. It would be easier for us to convert 6.5% to a decimal in order to multiply. Let's convert 6.5% to a decimal by dividing by 100:

Now that we have the sales tax in decimal form, let's multiply this sales tax by the total amount of the items before tax ($381):

This means that $24.77 is the tax for this purchase. To find the total amount that Jon paid for these items after tax, you must add the tax to the total amount before tax to give you:

So now we know that 
Jon's total bill for these items is $405.77.
 
        
        
        
Answer:
q≤-26
Step-by-step explanation:
7.85+q≤-18.15
-7.85     -7.85
q≤-26
 
        
             
        
        
        
the answer to your equation is 25, because 17 if 68 is 25
 
        
             
        
        
        
Answer:
A) A(t)  =  4500*π  -  1600*t 
B) A(4)  =  7730 in³
C) t  =  8,8 sec
Step-by-step explanation:
The volume of the sphere is:
d max  =  30   r max  =  15 in
V(s) =  (4/3)*π*r³      V(s)  =   (4/3)*π* (15)³
V(s) = 4500*π
A)  Amount of air needed to fill the ball A(t)
A(t)  = Total max. volume of the sphere - rate of flux of air * time
A(t)  =  4500*π  -  1600*t    in³
B) After 4 minutes
A(4)  =  4500*π  - 6400 
A(4)  =  14130 - 6400
A(4)  =  7730 in³
C)  A(t)  =  4500*π  -  1600*t  
when  A(t) = 0   the ball got its maximum volume then:
4500*π -  1600*t  =  0
t  =   14130/1600
t  =  8,8 sec
 
        
             
        
        
        
Answer:
30
Step-by-step explanation:
Note that, when two negative signs are directly next to each other, they mean addition. Note the rule: 
A positive sign & A positive sign = Positive number.
A positive sign & A negative sign = Negative number.
A negative sign & A negative sign = Positive number. 
In this case:
- (-15) = + 15
Simplify. Combine like terms: 
15 + 15 = 30
30 is your answer.
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