It is the D answer.
Even though I cannot see the second equation, I know that this must be it. It is the only set of equations that properly states that she must work less than 15 hours combined (b + t)
weight is a force
force=mass times acceleration
weight=24.52*0.59=14.4668N
There are 2 faces 7 x 5

There 2 faces 5 x 5

there are 3 faces 5 x 12

There are 2 faces 7 x 7

Now only we have to sum all of them together
Step-by-step explanation:
Let there be x blue ribbons

Oakdale is the answer I think