Respuesta :

PunIntended

21: if the temperature is 16 and it drops to -15, we write

16 - (-15) = 16 + 15 = 31 degrees

22: if you start at 450 and go down 300, we write

450 - 300 = 150 feet below sea level

JonHenderson55

21) The answer is: " 31° F " .

Explanation:

To solve:

Method 1)

| 16 - (-15) | = | 16 + 15 | = | 31 | = 31 .

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Method 2)

| -15 - 16 | = | -31 | = 31 .

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22) The answer is: "750 feet below sea level" .

Explanation:

To solve:

- 450 ft - 300 ft = " - 750 ft. " ;

or, " 750 ft. below sea level".

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