Answer:
1.5c - 5
Step-by-step explanation:
Divide the expression by 4 because a square has 4 sides of equal length.
6c - 4(0-5) = 6c - 20;
(6c - 20) / 4 = 1.5c - 5
76, because the graph shows how many visitors there are around 90 degrees
To get the result we have to transform given formula into y=ax+b form.
Lets do this
5x+3y=6 /-5x (subtract 5x both sides)
3y=-5x+6 /:3 (divide both sides by 3)
y=

In form y=ax+b we know that a is slope and b is y intersect. We can read from our transformed equation that slope a=

and its the result