At 6 a. m., the temperature is 19.4°C. Between 6 a. m. and noon, the temperature rises 3.8°C. Between noon and 6 p. m., the temperature falls 2.5°C. What is the temperature at 6 p. m.?

1.3°C

6.3°C

13.1°C

20.7°C

20.7 degrees C
Step-by-step explanation:
Here's the easiest way to solve. Grab a calculator, or a piece of paper. (its simple math) S, The start is 19.4. Then, it rises 3.8. So add that to 19.4. That gives you 23.2, BuT, it falls again, back down 2.5 degrees. so take 23.2, and subtract 2.5 from it. That should give you 20.7 degrees.