(a(i))[2]
Find the matrix $2A - B$.
(a(ii))[2]
Find the inverse matrix $B^{-1}$.
(b)[2]
The matrix $C$ is defined by $3C + 4\begin{pmatrix}-2 & 1 \\ 0 & 3\end{pmatrix} = C$. Find $C$.
(c(i))[2]
For $D = \begin{pmatrix} 3 & 2 \\ 1.5 & 3 \\ 2 & 2.5 \end{pmatrix} \begin{pmatrix} 650 \\ 580 \end{pmatrix}$, find $D$.
(c(ii))[1]
Explain what the information in matrix $D$ means.
(c(iii))[1]
Find the total amount, in dollars, that Theresa receives from selling her fruit.