The age of a father is twice the square of the age of his son eight years hence the age of the father will be 4 years more than three times the age of the son. find their present age?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

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.