9+12=m or 9+12=21
this is because when we start with m-9=12 we know that m is supposed to be the sum of 9 and 12.
if we check our work we will see this
9+12=21
9+12=21
m-9=12
21-9=12
the answer is -5/2x+1 thats what i see
-7-9, because he already starts below the surface by 7 feet then digs 9 inches lower
Answer:
7,4,15,6
Step-by-step explanation:
7,4,15,6