The sum of two numbers is 544. One number is 300. What is the other number?

244.

Step-by-step explanation:

The inverse operation for addition is subtraction. So to find the second number, you must subtract 300 from 544 (544-300), and you get 244. To check it add 300 and 244.

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