Answer:
y=3x-6.5
Step-by-step explanation:
y-y1=m(x-x1)
y-(-0.5)=3(x-2)
y+0.5=3x-6
y=3x-6-0.5
the equation is
p = 600 + 150x
x is month
x= 7
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a= 20/3
