Need help with this pls asap

All per-unit concepts rely on ratios, meaning, to provide a type of measurement

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2