Answer:
1.254 * 10^3
Step-by-step explanation:
1254 = 1.254 * 1000 = 1.254 * 10^3
Dose not make sense because I don't get what you mean when you say there their for classes I think it should be there are and you didn't tell use how much classe there are
Simplifying Expressions Using the Properties of Exponents (Four Examples)Daniel Ozimek
Answer:
x=81
y=99
z=129
Step-by-step explanation: