Answer:
I think the answer would be Kl, and KM so the last option.
Step-by-step explanation:
80% = 0.8
100% = 1
0.8 = 72
1 = x
0.8* x = 72 * 1
x = 72 / 0.8 = 90
0.8 * 90 = 72
80% * 90 = 72
5
Each one goes up by .75 cents
Below
Let x and x' be the zeroes of the quadratic polynomial ax^2 +bx + c
● xx'= -c/a
● x + x' = -b/a
