Answer:
13 packages
Explanation:
We need to first find the area of the composite figure. We can draw a horizontal line through the figure so that it is broken up into two rectangles.
The top rectangle has dimensions of 9 ft by 2 ft, while the bottom rectangle has dimensions of 3 ft by 7 ft. The area of a rectangle is denoted by: A = lw, where l is the length and w is the width.
Here, the top rectangle has width 9 and length 2, so the area is A = 9 * 2 = 18 square feet. The bottom rectangle has width 7 and length 3, so the area is A = 7 * 3 = 21 square feet. Add these up:
18 + 21 = 39 square feet
We know that each package of tile will cover 3 square feet, so divide 39 by 3 to get the number of packages needed:
39 / 3 = 13
The answer is 13 packages.