ALGEBRICAL EXPRESSIONS

substract 5m (2m-4n+5) - 6m (m-3n+2) from 4m (-m+n+12​

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Name the most appropriate metric unit for each measurement

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.