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
Answer:
See below.
Step-by-step explanation:
The graph of the quadratic equation is a parabola or u shaped graph. It has a vertex at (-1,-3) since h=-1 and k=-3 in the vertex form. It is also facing down since the leading coefficient is negative.
The only number not divisible by anything except itself and 1, was C. 7
Answer:
a. 23
b. 13
c. 13/23
Step-by-step explanation:
a. 23 customers (13 +10) are on plan B (lol)
b. 13 customers on this plan text more often
c. Thus, 13/23 of customers on payment plan B use the phone most often to text
Hope this helps :)
I think the three box.sorry if wrong