rahman786khalilu

please help me with this problem

Half of the pens at a stationary shop are blue. 1/8 of the remaining pens are red, while the remaining pens are black. If there are 210 more black pens than red pens, how many pens are there altogether?

The length of a rectangular floor is 5 m longer than its width. The area of the floor is 84 m².


Questions:
1. What expression represents the width of the floor? How about the expression that represents its length?

2. Formulate an equation relating the width, length, and the area of the floor. Explain how you arrived at the mathematical sentence.

3. How would you describe the equation that you formulated? 

4. Using the equation, how will you determine the length and width of the floor?

5. What is the width of the floor? How about its length?

6. How did you find the length and width of the floor?

In budgeting their income, a young couple allows 1 / 6 for rent, ½ for food, and the rest for clothing.

source:

What fractional part do they provide for clothing?

1. 2 / 5
2. b. 1 / 3
3. c. 5 / 6 d. 3 / 5