Larry read a 400-page book. he read at a rate of 10 pages per day for d days. write an equation that could be used to find out how many days it took larry to read the book.

400/10=d

This is what I got because if he reads 10 pages a day then 400/10 is the number of days it took him to read the book. Hope this helps :)

Use a calculator basically

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8