Answer:
a = -8
Step-by-step explanation:
you can solve this proportion by cross-multiplying:
4(a + 9) = -1(a + 4)
now distribute to eliminate parentheses
4a + 36 = -1a - 4
5a + 36 = -4
5a = -40
a = -8
Hello.
The answer to 1 is <span>$3,180
All you have to do is divide 21,200 by 15%
The answer to 2 that is also true. You would have to find the unit rate to be able to find how much miles to operate.
Have a nice day</span>
Y=-x-3/2
That's it written in slope intercept form