Geometry
find the surface area of the regular pyramid shown to the nearest whole number.

Step-by-step explanation:

The given solid is a square based pyramid. The formula for determining the volume of a square based pyramid is

Volume of pyramid = 1/3 × A×H

Where

A represents the area of the square.

H represents the height from the base to the apex of the pyramid.

Area of the square base is expressed as length × length

The length of the square base is 5 ft

Area of the square base is 5×5 = 25ft^2

Volume of the is 1/3 × 25× 7 = 58.33

Approximately 58.3 ft^3

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72