Question

Evaluate the function for the given value.
The function c(x) = 2.5x + 15 shows the cost, in dollars, to make x necklaces.
What is c(10)?
Answer:
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Answer 1

To evaluate the function \( c(x) = 2.5x + 15 \) for \( x = 10 \), we'll substitute \( 10 \) into the function:

\[
c(10) = 2.5(10) + 15
\]

Now, calculating \( 2.5 \times 10 \):

\[
2.5 \times 10 = 25
\]

Next, we add \( 15 \):

\[
25 + 15 = 40
\]

Therefore,

\[
c(10) = 40
\]

The answer is:

**40**