The two-way table shows information about the subjects studied by some people.
Chemistry Biology
Physics
Total
Male
12
14
16
42
Female
16
20
12
48
Total
28
34
28
90
a)
How many people are male OR study Biology OR both?
b)
What is the probability that any person is male OR
studies Biology OR both?​

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?