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Polynomials and properties of exponenets

In the expression -7x-3x^2+5 what is the coefficient of x

A.7
B.3
C.-3
D.-7

Suppose you earned 6t+2 dollars on monday and 9t - 6 dollars on tuesday what were your total earnings simplify your answer.

A.15t-4
B.15t+8
C.-3t-4
D.-3t+8

100^12/100^8

A.100 ^12/8
B.100^96
C.100^4
D.100^20

X^16/x^3

A.x^16/3
B.x^48
C.x^19
D.x^13

Answers a.c.d.c please help

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Help me

  1. D,A,C,D

    Looks like some serious review is in order.

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    Steve

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