Answer:
19.26
Step-by-step explanation:
7% of 18 is 1.26
1.26+18=19.26
 
        
             
        
        
        
Answer:
466 + 68
Step-by-step explanation:
We can easily check a subtraction problem with an addition problem. 
Calculate the sum of the subtracted and the difference. If the sum is equal to the minuend in the original subtraction problem, the answer is correct. 
Minuend - Subtrahend = Difference
466 + 68 = 534
The statement '534 – 68 = 466' is correct. 
Hope this helps.
 
        
             
        
        
        
Answer:
One adult ticket is $4 and one child ticket is $7
Step-by-step explanation:
Make a system of equations
2x + 10y = 78
8x + 5y = 67
Solve by elimination, multiply the 2nd equation by -2
2x +10y = 78
-16x -10y = -134
Add the equations
-14x = -56
x = 4
The price of one adult ticket is $4
Plug 4 in as x to find y
2(4) + 10y = 78
8 + 10y = 78
10y = 70
y = 7
The price of one child ticket is $7
 
        
             
        
        
        
The answer is 0.3 (1/3.)
Proof?
f(0.3) = 18(0.3) + 8
f(0.3) = 6 + 8
f(0.3) = 14
14 = 14
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