To write the number is standard form we need to move the decimal point six times to the right, then:

therefore the answer is b.
Answer:
x = 10
Step-by-step explanation:
We know that is a right angle which is 90 degrees.
we know one angle is 30 degrees.
So take 90- 30 = 60
now we solve for 6x
6*10 = 60 and 60+30=90
x = 10
The third one: No, yes, no
Answer:
-53, -24, 0, 18
Step-by-step explanation:
Hope this helps :)