If cash prizes are to be avoided, then . . .
-- The first prize has to be a car.
-- The second prize can be a motorbike or a trip ... 2 possibilities.
For each of those . . .
-- The third prize has to be a TV.
Since there's no choice with the first or third prizes,
I only see two different ways to avoid a cash prize.
Answer:
1.) ax2+Bx+c
2.) parabola
3.) I don't know
4.) I don't know
5.) maximum
6.) minimum
7/8) The solutions of a quadratic equation are also called roots, zeroes, and x -intercepts.
I hope this kinda helped.
2/3 = 0.666
4/5 = 0.8
so, 4/5 is closer to 1
Answer=150 seats were on the plane total
54 81
____=____
100 x
cross multiply
54x=8100
x=150 seats