Three (3) is a common factor of 21 and 22

A. True
B. False

Itsjackenley

False

Step-by-step explanation:

3 is a factor of 21 but it is not a factor of 22

A.

The Greatest Common Factor for 21 and 22, notation GCF 21 and 22 is 1.

Step-by-step explanation:

The factors of 21 are 1, 3, 7, 21

The factors of 22 are 1, 2, 11, 22

The GCF or division is 1, because it is the greatest number that divides evenly into all of them.

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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step-by-step explanation: