What is the answer to the math peoblem

Step-by-step explanation:

∠ 6=∠ 7

11 x+8=12 x-4

12 x-11 x=8+4

x=12

m∠6=11x+8=11×12+8=132+8=140°

m∠ 4+m∠ 6=180°

m∠4+140=180

m∠4=180-140=40°

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