NEED HELP ASAP: WILL MARK BRAINLIEST: The Hayes family and the Butler family each used their sprinklers last summer. The water output rate for the
Hayes family's sprinkler was 20 L per hour. The water output rate for the Butler family's sprinkler was 15 L
per hour. The families used their sprinklers for a combined total of 50 hours, resulting in a total water output
of 825 L. How long was each sprinkler used?

Consider the expression below. 9 + 4(x + 2) – 3.1 select the term that best describes "3" in the given expression. o a. coefficient variable exponent constant

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.

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points