What is 100,000,000,000,000,000 as a power of ten

10 to the 17th power

Step-by-step explanation:

with 10s you just take the number of zeros behind the number and that equals the amount of powers you have. This method does not work with any other number besides 10!!

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Step-by-step explanation:

10 to the power of 17. You count how many zeros there are and that’s your power.

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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