Allright to find this you have to put the equation into order again. The equation of a line is y=mx+c. M= Gradient. C = Y intercept. After you put it in order you just have to read it. If you need the answers comment ill find them...
12 tables seat 4 people = 48 seats
28 tables seat 2 people= 56
therefore there are 104 seats
3a(4a²-5a+12)
12a³-15a²+36a
~Hope this helped!~
Answer:
what slope and graph? sorry!
