Which of the following descriptive analytics techniques summarizes changes in financial performance over tim counts totals, sums and averages vertical and horizontal analysis

Solve by the elimination method. Also determine whether the system is consistent or inconsistent and whether the equations are dependent or independent. \( \begin{array}{r}3 x-12 y=15 \\ 2 x-8 y=10\end{array} \) A. There is only one solution. The solution of the system is (Simplify your answer. Type an ordered pair.) B. There are infinitely many solutions of the form ( \( x \). (Simplify your answer.) C. There is no solution.

Solve using the quadratic formula. \( -4 v^{2}-9 v+3=0 \) Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth. \( v=\square \) or \( v=\square \)

Let \( P=\left[\begin{array}{ll}6 & -1 \\ 2 & -4\end{array}\right] \) and \( M=\left[\begin{array}{cc}-6 & 2 \\ 2 & -7\end{array}\right] \) Calculate \( (P M)^{T} \) without calculatins \( P M \)

Sabc-se que ela pagou \( 3 / 20 \) do valor da escova, uma dc suas alunas pagou o triplo do que ela pagou, e quatro outras alunas ofereceram para repartir o valor restante igualmente. a) Que fração da escova cada aluna pagou? b) Se a escova custou 800 reais, quanto pagou cada aluna?

que \( A=73^{\circ}, B=64^{\circ}, y c=37 \)