Linda y kevin estan considerando establecer un negocio de flanes. mensualmente gastan $175.00 en energia electrica, $40.00 en agua y $75.00 en telefono. ademas, pagan $350.00 de alquiler. cada flan lo venderan en $5.75. cuantos flanes deben confeccionar si desean obtener un ingreso de $1,200.00 para cada uno?

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted