Which equations are true? choose all answers that apply: choose all answers that apply: (choice a) a 0=(-x) + x0=(−x)+x0, equals, left parenthesis, minus, x, right parenthesis, plus, x (choice b) b 0=x + x 0=x+x0, equals, x, plus, x (choice c) c none of the above

  A.  0 = (-x) + x

Step-by-step explanation:

Adding opposites results in zero.

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Comment on the other answer choice

Of course, x + x = 2x. This will only be zero if x is zero.

7.3

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6