To address the problem, let's break it down into parts as requested:
A. Finding the Fixed Cost
The fixed cost can be found by evaluating the cost function \( C(x) \) at \( x = 0 \):
\[ C(0) = 10(0) + 500 = 500 \]
Thus, the fixed cost is $500.
B. Cost of Making 25 Items
To find the cost of making 25 items, substitute \( x = 25 \) into the cost function \( C(x) \):
\[ C(25) = 10(25) + 500 \] \[ C(25) = 250 + 500 = 750 \]
Therefore, the cost of making 25 items is $750.
Summary
- Fixed Cost: $500
- Cost of Making 25 Items: $750