Ascale drawing of a lake has a scale of 1cm to 80 m. if the actual widthof the lake is 1,000 m, what is the width of the lake on the scale drawing? explain or show your reasoning.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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.

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?