Which expression is equivalent to 13 - -21

1 answer:

Ber [7]3 years ago

5 0

13 + 21 = 13- -21

The minus sign and negative cancel each other out.

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Kisachek [45]

Answer:

t=20n

Step-by-step explanation:

The answer would be t=20n or something similar because 20n stands for $20 per lawn, which equals t, the total.

3 0

3 years ago

bixtya [17]

I hope it's about 1.8 sec

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3 years ago

AfilCa [17]

20,000 + 70 + 3 = 20,073

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3 years ago

lilavasa [31]

Answer:

where are the expressions??

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2 years ago

Anna11 [10]

4y = 12 - x
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3 years ago