Answer:
b)-9,2
Step-by-step explanation:
x^2+7x-18=0
x^2+9x-2x-18=0
x(x+9)-2(x+9)=0
(x+9)(x-2)=0
therefore
x=-9
x=2
y = 2.5 + 4.75, every additional rose sold , x, increases the cost of the rose, y, by 2.50
the one with one line and the one that is parallel, Basically the two on top^_^
80.08 = (8 * 101) + (8 * 1/102)
80.08 = (8 * 10) + (8 * 1/100)
80.08 = 80 + 8/100
80.08 = 80 + 0.08
