Write a function rule that gives the total cost c(p) of p pounds of sugar if each pound costs $0.42.

Question

c(p) = 0.42p

c(p) = p + 0.42

c(p) = 42p

Answer 1

The correct function rule that gives the total cost \( c(p) \) of \( p \) pounds of sugar if each pound costs $0.42 is:

\[ c(p) = 0.42p \]

This means that the total cost \( c \) is equal to the cost per pound ($0.42) multiplied by the number of pounds \( p \).