Helen can type at a rate of 70 words per minute. How many words can she type in 45 minutes?

Can someone me with these two circle theorem questions asap?

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

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.