Answer:
m=-11
Step-by-step explanation:
All you have to do is subtract 3 from both sides and you get -11!
I hope this helps and have a great day!
Answer:
-20
Step-by-step explanation:
PEMDAS
When working with very large or very small numbers, scientists, mathematicians, and engineers use scientific notation to express these quantities. Scientific notation is a mathematical abbreviation, based on the idea that it is easier to read an exponent than to count many zeros in a number. Very large or very small numbers need less space when written in scientific notation because the position values are expressed as powers of 10. Calculations with long numbers are easier to do when using scientific notation
240. First You divide 420 by 7 then you multiply 60 by 4.
Hope it helped!
