Kenny has 2 red marbles, 3 blue marbles, and 4 black marbles. which ratio compares a part to the whole?
2 to 7. 5 to 4. 3: 9 9: 5

3:9

Step-by-step explanation:

since there are 9 marbles in total it must be x to 9

the only solution available, which shows this is 3:9

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

96 39 cause 135 -96=39 im smart (i used a calculater)