Final answer:
To find the area of a rectangle with length 5 and width 3x+2, multiply the length by the width. The area is given by (5) * (3x+2), which simplifies to 15x + 10 square units.
Step-by-step explanation:
To find the area of a rectangle, you multiply its length by its width. In this case, the length is given as 5 and the width is represented as 3x+2. So, the area of the rectangle is (5) * (3x+2).
To simplify this expression, distribute the 5 to both terms inside the parentheses: 5 * 3x + 5 * 2. This gives us 15x + 10.
Therefore, the area of the rectangle is 15x + 10 square units.