13. Trevor scored 42 points in the first game, 61 points in the second game and 53 points in the third game. How many fewer points did Trevor score in the first game than in the second and third games together?

a) \( \frac{0,3}{0,5}=\frac{1,5}{x} \)

B) (2 pts) Are there any "leftover" resources? If so, what constraint has them? If not, how do you know that there are no "leftover" resources?

Simplify the expression: \( 5(4 k+1)=\square \)

Find the Following matrices where \( A=\left[\begin{array}{cc}6 & -7 \\ -4 & 6 \\ -1 & 4\end{array}\right] \) and \( B=\left[\begin{array}{cc}-9 & 8 \\ 3 & 0 \\ -3 & 8\end{array}\right] \) Select the correct chace below O. A \( -3 A-9 B=\square \) simplify your answer 0 B. This matrix operation is not passible. O.

Find the direction of the vector sum Vector A is 2.84 m long in a \( 23.4^{\circ} \) direction. Vector B is 1.72 m long in a \( 14.5^{\circ} \) direction.