For problems 7-12, solve the equations. If the solution is irrational, round to the nearest ten-thousandth.

A.
B.
C.
D.
E. none of these


Answer: C

Mathematics

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Solve the problem.Find the least squares line through the points      and 

A. y = 33x + 56 B. y = -3x + 16 C. y = -3x + 56 D. y = 33x + 16

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Divide, if possible. Write the answer in simplest form.4 ÷ 2

A. 1
B. 1 
C. 1 
D. 2 

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Complete.20 gal =    qt

A. 320 B. 10 C. 160 D. 80

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Find the percent increase or decrease.

A. 200% increase B. 125% increase C. 150% increase D. 100% decrease

Mathematics