Can yall help meh xD

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

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?