Solve the Problem B) C) D)

Solve the problem.
-Three different clothing stores order the following amounts of clothing by a certain designer:

The unit prices of each product are given below for two suppliers:
What matrix product displays the cost to each store of buying the clothes from each supplier? Display the two matrices which must be multiplied and their product.

A) $\left[\begin{array}{lll}50 & 20 & 50 \\ 50 & 30 & 20 \\ 10 & 30 & 30\end{array}\right]\left[\begin{array}{rr}85 & 90 \\ 30 & 30 \\ 180 & 200\end{array}\right]=\left[\begin{array}{rr}13,850 & 15,100 \\ 8750 & 9400 \\ 7150 & 7800\end{array}\right]$
B) $\left[\begin{array}{lll}50 & 20 & 50 \\ 50 & 30 & 20 \\ 10 & 30 & 30\end{array}\right]\left[\begin{array}{rr}85 & 90 \\ 30 & 30 \\ 180 & 200\end{array}\right]=\left[\begin{array}{r}28,950 \\ 18,150 \\ 14,950\end{array}\right]$
C) $\left[\begin{array}{lll}50 & 50 & 10 \\ 20 & 30 & 30 \\ 50 & 20 & 30\end{array}\right]\left[\begin{array}{rr}85 & 90 \\ 30 & 30 \\ 180 & 200\end{array}\right]=\left[\begin{array}{rr}7550 & 8000 \\ 8000 & 8700 \\ 10,250 & 11,100\end{array}\right]$
D) $\left[\begin{array}{lll}50 & 20 & 50 \\ 50 & 30 & 20 \\ 10 & 30 & 30\end{array}\right]\left[\begin{array}{r}85 \\ 30 \\ 180\end{array}\right]=[13,85087507150]$