Justify a Solution The expression -3m - [2m + (5 - m)] + 7 was simplified as 2 - 4m. Without simplifying, explain how you can show that it has been simplified correctly.

Step-by-step explanation:

Given the expression

Step one

Firstly we have to open the inner bracket we have

Step two

we proceed further by opening up the next bracket we have

Step three

we then have to collect like terms of m and rearrange.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.