The object on the right is made from a square based pyramid...

Step-by-step explanation:

step 1

Find the volume of the cuboid

The volume is equal to

step 2

Find the mass of the cuboid

Remember that

The density is equal to divide the mass by the volume

so

The mass is equal to multiply the volume by the density

step 3

Find the mass of the square base pyramid

subtract the mass of the cuboid from the total mass

step 4

Find the volume of the pyramid

The volume is equal to

step 5

Find the density of the steel (pyramid)

divide the mass of the pyramid by the volume of the pyramid

john has 55 candy left.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !