The distance from talamunda to velcratianis 700 miles. the rain takes 5 hours to travel the distance. at what unit rate is the train traveling?

It seems like this problem is expressing miles and hours, so we will go with mph.

Take your distance traveled and divide by the number of hours to determine how many mph it was traveling.

700/5 = 140 mph

Check!  How far can the rain travel in 5 hours if traveling 140 mph?

140 added 5 times = ?

Does it check out?

Yes! That's some fast traveling rain!!

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