Can someone me with these 2 questions?

4.jada has read 3/5 of a book. she has read 75 pages so far. how many pages are in the whole book?

5. main bikes 6 3/4 miles today, and noah biked 4 1/2 miles. how many times the length of noah's bike was mai's bike ride?

3/5 = 75/x

75/3 = 25

5 x 25 = 125

3/5 = 75/125

Book has 125 pages

6 3/4 ÷ 4 1/2 = 1 1/2

1 1/2 times as long

x

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

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