Answer:
2/3
Step-by-step explanation:
The slope-intercept equation is y=mx+b.
The slope formula is
Our three points are (5,5), (-5,-7) and (0,-1)
Using our slope formula our slope becomes
Then, if we use one of our points (pick whichever you want, although (0,1) is the easiest) to solve the equation. So, . When we solve for x and y, we get -1=0+b, or b=-1.
When we plug that back into the equation, we get.
The answer is -- 8 hours
Explanation:
8 (tip) x 6 (tables) = $48
104 - 48 = $56
56 / 7 = 8