Answer:
= -21.6x + 168
Step-by-step explanation:
Combine Like Terms
13x -34.6x + 168
13x + - 34.6x + 168
(13x+ -34.6x) + 168
-21.6x + 168
Answer:
0.45
Step-by-step explanation:
9/20 is the same as 0.45
y = 1/2x + 3
change x and y
x = 1/2y + 3
now find the value of y and that is inverse function
x - 3 =1/2 y
y = 2x- 6
f-(x) = 2x - 6
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for both domain : ( - ∞ , + ∞ )
range f (x) : ( - ∞ , + ∞ ) - { 0 }
range f-(x) :( -∞ , +∞)

The answer will be the third one: Yes, because the total will be $37.50.