23) The farmer in the previous problem has a neighber who has a field 325 ft by 420 ft . His neighbor wants to increase the size of his field by \( 20 \% \) by cultivating a band of uniform width around the outside of his lot. How wide a band should his neighbor cultivate?

Find the equation of the straight line perpendicular to FG that passes through the mid point of \( F G \). Express your answer in the form \( a x+b y+c=0 \), where \( a, b \) and \( c \) are integers. Give your answer in its simplest form.

Circle \( P \) has a radius of \( r \) and circle \( Q \) has a radius twice as large. How many times greater is the area of circle \( Q \) than the area of circle \( P \) ? A. 2 B. \( 2 r \) C. 4 D. \( 4 r \)

555. Длина прямоугольника \( 7 \frac{3}{5} \) см. Его периметр равен периме квадрата со стороной 6 см. Найдите ширину прямоуго ника.

Define la diferencia entre un arco mayor y un arco menor en un círculo.

Se sabe que el foco de una parábola se encuentra en el punto ( \( 57 ; 15 \) ) y que el vértice de la misma se encuentra en el punto ( \( 21 ; 15 \) ). Determinar la ecuación que representa la parábola y en base a ella calcular el valor de la coordenada " \( x \) " de un punto de la curva del que se sabe que su coordenada \( y=37 \).