Answer:2x-y=4
Step-by-step explanation:
Answer:
hope this helps
Step-by-step explanation:
part.1
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