Select the letter of the correct answer. ecuador has 52 volcanoes, but only 17 are active. approximately what fraction of ecuador's volcanoes is inactive?

a. 2/5 volcanoes
b. 2/3 volcanoes
c. 1/3 volcanoes
d. 5/2 volcanoes

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

the answer is a

step-by-step explanation:

b

step-by-step explanation: