Answer:

Step-by-step explanation:
<u><em>The complete options are</em></u>
a) x - 2y = 30
b) 4x - 3y = 30
c) 3x - 4y = 30
d) 6x - 6y = 30
The given equation is

<u>Verify option d</u>
we have

Divide by 6 both sides



therefore
and
are equivalent
1: 11/28
2: 67/72
3: 1 11/30
Plug in 2 for x. f(20=2-51 = -49
I believe it would be 8 km in five miles. I hope this helped ^^
Answer:
Letting x represent the number of signatures
then
520 + 6x = 1000