The coordinate of a figure is (1,5). What will be the new coordinate after a dilation with a scale factor of 4/5? 6)
A)
(4/5, 4)
B)
(0,4/5)
9
(1,4)
D)
(1, 25/4)

a 4/5 4 is right

Step-by-step explanation:

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