Step-by-step explanation:

Answer:
All except the second, third, fourth and seventh option.
Step-by-step explanation:
Scientific notation is always a number more than or equal to 1, less than 10 multiplied by 10 to a power. Anything else is considered wrong.
x•10^n while 1<=x<10
Answer: 6.
We found the factors and prime factorization of 18 and 24. The biggest common factor number is the GCF number.
They’re equal to one another.
0.01x=0.6
0.01x/0.01=0.6/0.01
x=0.6/0.01 (simplify)
x=60