Answer:
y = -7.5 I believe
Step-by-step explanation:
That answer your looking for is 80
Answer:

Step-by-step explanation:

Hope this helps you.
Let me know if you have any other questions :-)
Answer:
2.14
Step-by-step explanation:
Basically its like regular subtraction
4.6
-
2.46
________
2.14
800 = 8 x 10^2 in standard form
200 = 2 x 10^2 in standard form