Final answer:
To find how many light bulbs are needed for 14 chandeliers using the function b(n) = 10n, we substitute n with 14, yielding 140 light bulbs. The correct answer is A) 140.
Step-by-step explanation:
The student's question is about the function b(n) = 10n, which represents the number of light bulbs needed for n chandeliers. To find out how many light bulbs are needed for 14 chandeliers, we simply substitute the value of n with 14 into the equation:
b(n) = 10n
b(14) = 10(14)
b(14) = 140
The correct answer is A) 140 light bulbs.