How do you write an expression for “On Tuesday at lunchtime, it was 29 degrees C. By sunset, the temperature had dropped to 16 degrees C.”

The expression will be 29°C-13°C

Step-by-step explanation:

You will write 29°C-13°C because when you subtract 13 from 29 you get 16, so that's how you'll know that the temperature decreased to 16.

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the answer to this question is in the pic

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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