Claudia went shopping for holiday presents. She bought boxes of chocolates and boxes of ornaments for her coworkers. Boxes of chocolate cost \( \$ 5 \) each and boxes of ornaments cost \( \$ 7 \) each. She buys a total of 15 boxes and spends \( \$ 95 \). How many boxes of chocolates and how many boxes of ornaments does she buy? Using \( C \) for number of chocolateriouses and \( O \) for number of ornament boxes. Setup but do not solve the equations necessary to answer the questions. Your 1st equation: Your 2nd equation:

(4) Na PC cujo enésimo termo é a \( =-2 \cdot 3^{\circ} \). os quatro primeiros termos são \( -6,-18,-54,-162 \). Calcule o \( 20^{\circ} \) termo.

¡Buen dia, Jóvenes! En las siguientes diapositivas encontrarán las actividades para los grupos de 3ro A, B y C. Deberán enviarlas a más tardar a la 1:00 p.m.

4) \( a_{n}=-2.3^{m} \)

Question 16 The polynomial function \( f \) is defined by \( f(x)=-3 x^{4}-7 x^{3}+3 x^{2}+9 x-1 \). Use the ALEKS graphing calculator to find all the points \( (x, f(x)) \) where there is a local minimum. Round to the nearest hundredth. If there is more than one point, enter them using the "and" button. \( (x, f(x))=\left(\prod_{1}, \square\right) \)

Evalúa \( a+(-b) \), donde \( a=4 \) y \( b=2 \). \( \square \)