Whitney is decorating a rectangular ballroom ceiling with garland. Beginning in a corner, Whitney strings garland along the length of the ceiling, a distance of 42 meters. Next, Whitney strings garland along the width of the ceiling, a distance of 40 meters. Then Whitney strings the garland straight back to the original corner. At this point, how much garland has Whitney used?

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?