Answer:
17
Step-by-step explanation:
the amount of visits given by the problem is:
and we have that the equation that relates the number of visits with the total cost is:
where 
is the total cost for 
number of visits.
We plug into this equation the known value of visitors:
and we solve this expression:
the total cost for 10 visitors is 17.
Answer:
Step-by-step explanation:
Answer:
y = 7x
Step-by-step explanation:
The equation of a line passing through the origin is
y = mx ( m is the slope )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (100, 700 ) ← 2 points on the line
m = 
= 
= 7
y = 7 x ← equation of line
The second one is the right answer
