Answer:
the answer is C, -24
Step-by-step explanation:
3-21+6= -24
In a decimal the order is:
whole numbers/(.)/tenths/hundreths/thousandths and etc.
7 is in the thousandths place on the decimal.
Answer:

Step-by-step explanation:
Using pythagoras theorem,

The answer is (1,3) because when you graph it you can see it is on the parabola.
40,075 kilometers?
If you're going for a very rough estimate without knowing that the circumference is 40,075, I'd say to go for 40,000 but I'm not really sure what you're asking.