Final answer:
To find the area of the rectangle, multiply the width (3 units) by the length (5 times the width, so 15 units), resulting in an area of 45 square units.
Step-by-step explanation:
The question pertains to finding the area of a rectangle. Since the width of the rectangle is given as 3 units and the length is 5 times the width, we calculate the length to be 3 units × 5, which equals 15 units. To find the area, we multiply the length by the width, which gives us 3 units × 15 units = 45 square units.