Subtract.-  - 

A.
B. - 
C.
D. - 


Answer: B

Mathematics

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Graph the pair of parametric equations in the rectangular coordinate system.x = , y = 3t + 2; 0 ? t ? 4 

A.

B.

C.

D.

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Solve.How much pure acid should be mixed with 9 gallons of a 50% acid solution in order to get an 80% acid solution?

A. 4.5 gal B. 13.5 gal C. 36 gal D. 22.5 gal

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Find the sum.-9 + (-6)

A. -3 B. 3 C. 15 D. -15

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Evaluate.

A. 4 B. 5 C. 2 D. 7

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