Answer:
Bobby's economic profits for the day is $0.60.
Step-by-step explanation:
Bobby sells 20 glasses of lemonade for $0.20 per cup.
Amount earned = dollars
The average total cost is $0.17.
So, difference in selling amount and average = dollars
Therefore, Bobby's economic profits for the day is = dollars
Hence, the answer is $0.60.
Answer:
678.24 cubic feet.
Step-by-step explanation:
A pile of gravel is in the shape of a cone.
Radius of base of cone (r) = 9 feet
Height of the cone (h) = 8 feet
Volume of the cone (V) = ?
We know that, volume of a conical shape of radius 'r' and height 'h' is given as:
Now, plug in the given values and use 3.14 for π. Solve for 'V'. This gives,
Therefore, the volume of the gravel of pile is 678.24 cubic feet.