Jack can read 45 pages of his book in one and a half hours. At that rate, how long will it take hm to
read the entire 300-page book?

10 Hours

Step-by-step explanation:

First take 45 and multiply by two to get 90 pages every 3 hours.

Divide 90 by 3 to get how many pages read each hour which is 30 pages an hour.

Divide 300 pages by 30 pages to get 10 hours.

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6