Answer:
20.5 or 20 1/2
Step-by-step explanation:
calculator -.-
Answer: …………..
Step-by-step explanation:
……………..
3.49
124.8/20=6.24
6.24-2.75=3.49
For this case we must find the product of the following expression:

We have to by law of signs of multiplication:

Also, by definition of multiplication of powers of the same base, we put the same base and add the exponents, then the expression is rewritten as:

Answer:
