Translate the equation into a verbal sentence. 2a = 7a - b

twice a number is as much as 7 times the number less than another number.

twice a number is as much as the difference of 7 times the number and another number.

half of a number is as much as 7 times the number minus another number.

negative five times a number is the same as another number.

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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answer: do we write it

step-by-step explanation: