Tyson began solving the system {4x+2y=64x+5y=15 by writing −3y=−9 .

which property justifies this step?

division property of equality
multiplication property of equality
substitution property of equality
subtraction property of equality

what do you mean by fog

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

pls mark as brainliest