Question

please answer
both a and b​

Answer 1

Answer:

a. 9 degrees.

b. -2 degrees.

Step-by-step explanation:

a. 5 degrees + 4 degrees

   = 9 degrees .

b. 5 degrees - 7 degrees

   = -2 degrees .

Answer 2

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(a) THE TEMPERATURE ROSE FROM -4°C TO 5°C. MEANS:

$5 - ( - 4)$

$= 5 + 4 \\ = 9$

THE TEMPERATURE ROSE BY 9°C

(b) THE TEMPERATURE FELL BY 7°C FROM 5°C. MEANS:

$5 - 7 \\ = - 2$

THE TEMPERATURE AT THE AFTERNOON WAS -2°C