The relationship between the cost, y, in dollars, of x pounds of concrete can be modeled by a proportional equation. Part A The equation is y= x. Part B At this rate, how much do 150 pounds of concrete cost? Enter the answer in the space provided. $

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?