I will be glad to help you in the comments. I do need to know though, what is the class this is presented in? Is this algebra, or calculus? Depending on the class, we have different approaches.
Answer:
9. answer: -3, 10. answer: 5
Answer:
200 pages
Step-by-step explanation:
( number of pages) ×(2/5) = 80
Number of pages = 80 ÷(2/5)
Number of pages = 200
It would be 7 x 28 x 1/2 I think
Answer:
Step-by-step explanation:
1. 300
2. 2100
3. 560
4. 2800
5. 1200
6. 240
