Tiana takes 3 hours to drive to the coast without stopping. how many minutes will it take her to reach the coast if she stops to rest for 20 minutes?

Can someone check my answer? you : )

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

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?