American Indian resistance in the Ohio River Valley ended with A. the Treaty of Greenville.
B. Tecumseh’s death.
C. the Battle of Tippecanoe.
D. Sequoyah’s death.

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American settlers and American Indians often clashed as settlement spread across the West during that era.

Step-by-step explanation:

American Indian resistance in the Ohio River Valley ended with.

A.) The Treaty of Greenville

Step-by-step explanation:

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x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

answer4 to the second power is 16

and 4 to the third power is 64,