It would be 14.68 have a nice day
Answer:
$76.
Step-by-step explanation:
5% of 80=0.05•80=4. 80-4=76.
<span>What is the value of each of these digits in 654 321?
</span>21
Side of base of square, a = 10 km.
Height of pyramid , h = 12 km.
Volume of pyramid is given by :

Surface area is given by :

Therefore, volume and surface area are 400 km³ and 340 km² respectively.
Hence, this is the required solution.