An expression that represents the sum of b and 5 times 2

2(b+5)

Since "sum" means the answer to and addition problem it means we have to add. So it would be b+5. And instead of writing 2 x b+5. There is a simpler way: 2(b+5) cuz it means the same thing (multiplying by two) Hope this helps! Good luck!

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

happy to

pls mark as brainliest

step-by-step explanation: