Del gráfico. Calcule: \( x \) a) \( 100^{\circ} \) b) \( 90^{\circ} \) c) \( 110^{\circ} \) d) \( 120^{\circ} \) e) \( 130^{\circ} \)

\begin{tabular}{|l|l|}\hline 4. A square has a perimeter of 28 units, an & 5. \\ area of 49 units \( { }^{2} \), and sides that are either & 100 \\ horizontal or vertical. Two of the vertices are & an \\ in quadrants where the \( x \)-value is negative. & pe \\ What are the possible coordinates of the & the \\ square? \end{tabular}

A child's desk is made so that it is a replica of a full-size adult desk. Suppose the top of the full-size desk measures 48 inches long by 27 inches wide. If the top of a child's desk is 36 inches long and is similar to the full-size desk, what is the width?

Debido a un incendio en una fabrica de ropa, se tuvo que desalojar a las personas que estaban ubicadas dentro de un radio de 500 metros de la fábrica. Una familia tiene su casa a 400 metros al este y a 350 metros al sur de la fabrica. ¿La familia fue desalojada?

3. Two of the vertices of a rectangle are \( (6,1) \) and \( (7,1) \). If the rectangle has a perimeter of 18 units, then what are the coordinates of its other two vertices?

Sor what values of \( r \) will the area of the shaded region be greater than or equal to 12 square units?