Perform the indicated operation.( + )( - )

A. 12 - 8
B. 4
C. 12 - 2
D. 20


Answer: B

Mathematics

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Multiply.-4 ?  18 

A. -90 B. -72 C. 68 D. -68

Mathematics

Determine whether the function is one-to-one.h(x) = x - 

A. One-to-one B. Not one-to-one

Mathematics

Multiply.(-15)(-15)

A. 240 B. -240 C. 225 D. -225

Mathematics

Solve the problem.Bob is saving to buy a car. The total amount that he needs is $9000. The amount that he has saved so far is $6000. Find the amount Bob needs by solving the equation 6000 + x = 9000, where x represents the remaining amount he needs.

A. Bob needs $6000 more. B. Bob needs $3000 more. C. Bob needs $9000 more. D. Bob needs $3002 more.

Mathematics