The 3 in the hundreds place (value of 300) has a value that is 10x the 3 in the tens (value of 30).
Here is the set up:
Let m = mass of the block
m = (30•40•50)/(2.8)
Use your calculator to calculate the left side for m.
Hey there!☺



In our first step, we will simplify both sides of the equation:

Now subtract 4 from both sides:

In our last step, we will divide both sides by -2:

x=-7/2 is your answer.
Hope this helps!☺
18,055
-
3,138
———-
14,927
14,927
+
18,055
———-
32,982
The answer to the question is d.