Solve the system of equations by the elimination method.0.6x - 0.9y = 4.20.3x - 0.1y = -1.4
A. (-80, -100)
B. (-10, -8)
C. (-8, -10)
D. (-0.8, -1)
Answer: C
Mathematics
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Round the number to the place value indicated.21,629,336
A. 21,629,000 B. 21,000,000 C. 22,000,000 D. 21,700,000
Mathematics
Provide an appropriate response.The hundreds position is to the right of the tens position.
A. True B. False
Mathematics
Solve.
= 
A. 4 B. 16 C. 5 D. 20
Mathematics
Use the commutative and/or associative property of addition and then simplify.1 + (7 + x)
A. 7x + 1 B. x + 8 C. x + 7 D. 8
Mathematics