Answer:
Minimum: 72 Maximum: 88
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
Bookshelf =7boards each
Lumber=4 boards each
He wants to make 5 bookshelves total
5x7=35
So he needs 35 boards
And each lumber makes 4 boards
So what number times 4 is equal to or more than 35?
9times 4 is 36
So he needs 9 pieces of lumber to make 5 bookshelves.
Good luck with your work! Brainliest would be appreciated :)
20. 3 notebooks
21. 2ab, the coefficient is 2
22. t = 16
Hope this helps! :)