15 points!

Two resistors, each with a resistance of 5.312,
are connected in series to a 1.5 V battery. What
is the total resistance of the circuit? How much
power is used by the circuit? By each resistor?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?