Answer:
8a
Step-by-step explanation:
group all similar terms
3a + 5a = 8a
2 1/2 x 3 = 7 1/2 = 7 4/8
10 11/8
- 7 4/8
3 7/8
A is the correct answer
Answer: (-2,1)
Step-by-step explanation:
The area of the desktop is 12. 5 feet square
<h3>How to determine the area</h3>
The formula for area of a rectangle;
Area = length × width
Length = 2. 5 feet
Width = 5 feet
Area = 2. 5 × 5
Area = 12. 5 feet square
Thus, the area of the desktop is 12. 5 feet square
Learn more about area of a rectangle here:
brainly.com/question/14137384
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