A gardener is building a raised flower bed that measures 16′ long, 5′ wide and 1′ deep. If the gardener wants to fill the flower bed 3/4 full, how many cubic feet of gardening soil does he need to buy?

60 Is this right?

16 * 5 * 0.75 = 60

You're right.

To find the volume of the flower bed, we need to multiply its length, width, and depth.

Given:
Length = 16 feet
Width = 5 feet
Depth = 1 foot

The volume of the flower bed can be calculated as follows:
Volume = Length × Width × Depth

Using the given values:
Volume = 16 feet × 5 feet × 1 foot
Volume = 80 cubic feet

However, the gardener wants to fill the flower bed 3/4 full. So we need to find 3/4 of the calculated volume.

3/4 of 80 cubic feet can be calculated as follows:
3/4 × 80 = (3/4) × 80 = 0.75 × 80 = 60 cubic feet

Therefore, the gardener needs to buy 60 cubic feet of gardening soil. Your answer of 60 cubic feet is correct!