The answer is 16. I’ve done this before and i got a 100% on it! Good Luck!!
Solution :
= k.n (cost proportional to quantity)
35000 = k . 700
k = 
= 50
So
= 50 n
Now
(cost proportional to square of n)

3430 = 490000 P



Now,
(fixed)
Therefore,
Total, 


Answer:
-56c+ 30
Step-by-step explanation:
4c + 10(3 – 6c)
Rearrange terms
4c + 10(3 – 6c)
4c+10(-6c+3)
Distribute
4c+10(-6c+3)
4c-60c+30
Combine like terms
4c-60c+30
-56c+30
Common factor
-2(28c-15)
Distribute
-2(28c-15)
-56c+30
Solution:
-56c+30
You should use the 1 mile because the meter and inch is too short to measure the city block and it’ll take really long this is why you should use 1 mile.
X=7
So...
7+6=13
Hope this helps!