Solve the problem.A natural gas company charges $0.05 per therm of gas used for the first 25 therms and $0.07 per therm above the 25 therms used. (a) Write a piecewise-defined function c(x) for the cost of x therms of gas used. (b) Find c(x), c(x), and c(x).(c) Find c(30).

Question

A. (a) f(x) = ,
(b) $1.25, $3.00, $1.25
(c) $3.60
B. (a) f(x) = ,
(b) $1.25, $1.25, $1.25
(c) $3.60
C. (a) f(x) = ,
(b) $1.25, $2.19, $1.25
(c) $3.35
D. (a) f(x) = ,
(b) $1.25, $1.25, $1.25
(c) $1.60

Answer 1

Answer: D