Mary takes a sightseeing tour on a helicopter that can fly 450 miles against 15 mph headwind in the same amount of time it can travel 558 miles with a 15 mph. Find the speed, in miles per hour, of the helicopter.

what's that

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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step-by-step explanation:

use cymath

might be the correct answer will be question number 2