Answer: Choice D) x can be anything but 13
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Explanation:
The domain of 
is the same as the domain of g(x)
The domain for g(x) is 
saying we can plug in any number we want as long as it's not 13. This is to avoid dividing by zero. The same domain applies for the composite function because
and we can see that we still need to kick out x = 13 from the domain to avoid the division by zero issue.
<span>8 - 3x - 5x = -8
8 - 8x = -8
-8x = -8 - 8
-8x = -16
8x = 16
x = 16/8
x = 2</span>
The answer is 4 (136y-21)
Explanation:
Factor 4 out of 544y.
4 (136y) - 12*7
Factor 4 out of -12*7.
4 (136y) + 4 (-3*7)
Factor 4 out of 4.
(136y) + 4 (-3*7)
4 (136y- 3*7)
Multiply -3 by 7.
4 (136y - 21)
So the first thing you're gonna wanna know is how many miles Brian is riding per day so
16/2= 8
Then you'll want to do the following steps
16 × 5 = 80
8 × 5 = 40
80-40 = 40
Sandi rode 40 more miles then Brian in five days
Hope this helped!
