3 Tiana uses the equation c = 21h to figure out the total amount, c, she should charge a customer for babysitting for h hours. A. What is the constant of proportionally?

B. Tiana charges 94.50 for a job. How long did she babysit for? Show your work

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

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.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.