Cara and Beejal make a poster for school. The poster is in the shape of a rectangle. The left side of the poster measures 7 units; the top side of the poster measures 6 units. What is the area in square units of the complete poster?

A. 42 square units
B. 13 square units
C. 26 square units
D. 48 square units

To find the area of the complete poster, you need to multiply the length and width of the rectangle.

Length = 7 units
Width = 6 units

Area = Length x Width
Area = 7 x 6
Area = 42 square units

Therefore, the correct answer is:

A. 42 square units