Dalia owns a gravel pit. She took a random sample of rocks and counted
58
5858 sedimentary rocks,
213
213213 metamorphic rocks, and
522
522522 igneous rocks.

7

step-by-step explanation:

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

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80 the answer is 80

step-by-step explanation:

answer4 to the second power is 16

and 4 to the third power is 64,