<u>Answer:</u>
The bikes sold at break even by the manufacturer is 50 units
<u>Explanation:</u>
We know that break even point is given by the following formula,

We are given startup fee = $3500 which is the fixed cost,
the bikes sell for $250 which is the price per unit and
cost per bike is equal to $180
So substituting these values in the formula we get
= 
=
= 50
= 50 units which is the number of bikes sold at break even by the manufacturer.

notice the original, and the new one, with the tripled "r" and "h" is just, whatever the original was times 27, namely 27 times as large as the original.
Answer: $55.50
$9.25 * 6 = $55.50
Hope this helps let me know if you have any questions. Have a great day!
<span>(a.)
Let's say α is the angle that subtends from the top of the screen to horizontal eye-level.
Let β be the angle that subtends from the bottom of the screen to horizontal eye-level.
tanα = (22 + 10 - 4) / x = 28/x
α = arctan(28/x)
tanβ = (10 - 4) / x = 6/x
β = arctan(6/x)
Ɵ = α - β
Ɵ = arctan(28/x) - arctan(6/x)
(b.)
tanƟ = tan(α - β) = (tanα - tanβ) / (1 + tanα tanβ)
tanƟ = (28/x - 6/x) / [1 + (28/x)(6/x)]
tanƟ = (22/x) / [1 + (168/x²)]
tanƟ = 22x / (x² + 168)
Ɵ = arctan[22x / (x² + 168)]</span>