Casey's mom pays her $5.50 per hour for doing chores around the house. The graph shows how much money she can eam by doing chores. How long will Casey have to work in order to earn $13.75?

if this is really you s much. i only have 3 points left and i have 2 questions to ask

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