Answer:
p=rt/2
Step-by-step explanation:
2p/r =t
2p =rt (cross multiply)
p= rt/2
y=(1/9)x+4
x=3b
b=(1/3)x
y=2/6(1/3)x+4
y=(2/18)x+4
x=-1.8, x=-8.2
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