This needs to be dont by tomorrow HELP

Step-by-step explanation:

1. 2a + 3a + 3 = 8

5a + 3 = 8

5a = 5

a = 1

2. 3a - 2a - 4 = 0

    a - 4 = 0

     a = 4

3. 4 + 3a + 6 = 16

   3a + 10 = 16

    3a = 6

     a = 2

4. 12a - 6a + 6 = 24

     6a + 6 = 24

     6a = 18

      a = 3

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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