Derman says, “I’m halfway through reading my book. If I read another 84 pages, I’ll be two thirds of the way through my book.” How many pages are in Derman’s book?

504

Step-by-step explanation:

1-1/2=1/2

2/3-1/2=4/6-3/6

=1/6

84 pages=1/6 of the book

84 times 6=504

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

she drove 134 miles

step-by-step explanation: