6. x=1 , y=2
7. x=-4 , y=5
8. Infinitely Many Solutions
Answer: The same trip will require 3.8 hours.
Step-by-step explanation:
Since we have given that
Time = 
Speed = 55 mph
So, distance would be

If the speed limit = 65 mph
So, time will be

Hence, the same trip will require 3.8 hours.
Answer:



Step-by-step explanation:
Given

Required
Determine f(-1); f(0) and f(2)
Solving f(-1)
In this case, we simply take x as;

Substitute -1 for x in 

Apply law of indices


Solving f(0)
In this case, we simply take x as;

Substitute 0 for x in 



Solving f(2)
In this case, we simply take x as;

Substitute 2 for x in 



7.5% because 1.075 is equal to 107.5% but you want to find the tax so subtract the 100 since it’s only tax and u get 7.5%
Answer:
Yes that is correct. B is correct.
Step-by-step explanation:
When you plug 0 in for x, the result is 3.
When you plug 1 in for x, the result becomes 1.
The equation matches up correctly.
f(x) = -2x + 3
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