Ronnie charged his customer a flat fee of $25 plus $20 for each hour he spends working. Ronnie charged his first customer $175. Write an equation
to determine the number of hours (h) Ronnie worked on his first
customers computer.

Acircle has a circumference of 28.36 units what is the diameter of the 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.

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.