Given that the cubical piece has side (s) 7 mm, and a cylindrical hole of diameter (d) as 3 mm.
The volume of the piece can be calculated as,

It is mentioned that the material costs $207 per cubic meter, so the cost (c) of 1 piece is calculated as,

This is the cost (in dollars) for 1 piece.
Given that the manufacturer wants to produce 1,000,000 such pieces, so the total cost (TC) is calculated as,

Thus, the total prototypes will cost around $60.75
Im not sure if this is what you’re looking for but hope it helped!
1 gallon=8 pints
so, 5 pints + 3 pints = 8 pints= 1 gallon
and, 6 gallons + 3 gallons= 9 gallons
Finally, 1 gal+9 gal= 10 gallons
Answer: 10 GALLONS
Answer:
2 1/3 planes
Step-by-step explanation:
3.5 lego planes / 60 minutes
So fraction =
3.5/60
In 40 minutes he will build x planes
So the fraction equation is:
3.5/60 = x/40
Solve:
Cross multiply =
140 = 60x
x = 2 1/3
2 1/3 planes
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-Chetan K
The answer would be D) :)