Neither - They are
exactly
the same weight !
Step-by-step explanation:
Molly ran 1/4 of a mile in 1 minute, i.e.
1/4 mile : 1 minute
Multiply both sides by 4 to get time for one mile
1 mile : 4 minutes
Multiply by 4 again to get time for 4 miles
4 miles = 4*4 = 16 minutes.
So it takes Molly 16 minutes to run four miles.
Is there supposed to be more answer choices ?
I only see A
Just add a 0 to the end of all of em♀️
First, we want to distribute the 2z to what's in the parentheses:

Then we need to distribute the negative sign outside of the parentheses in order to make it easier to solve and combine like terms:

Now we combine like terms. The '2z' and '-2z' cancel each other out, so:

Then we solve for z by dividing by -6 on both sides:

So now we know that z = -8.