The break-even point of the Astronomical Telescope model is 61.6 units.
The given parameters;
The break-even point in units is determined from the point at which the total revenue is equal to expenditure.
Revenue = expenditure
[tex]305 u = 5420 + 217u\\\\305u - 217u = 5420\\\\88u = 5420\\\\u = \frac{5420}{88} \\\\u = 61.6 \ units[/tex]
Thus, the break-even point of the Astronomical Telescope model is 61.6 units.
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