Answer this with an explanation FAST: Richard wants to buy a bike that costs $140. He has already saved $84. He earns $7 each hour working
as a lifeguard and saves all of it for the bike. How many more hours does Richard need to work in order
to have enough money to buy the bike?

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.

Explain in a minimum of 2 sentences how to graph the equation of the absolute value function given a vertex of (-1,3) and a value of “a” equal to ½.

Solve for x where 0 equation: cot^2x+2cotx+1=0