Answer:
3 + b
Step-by-step explanation:
Hope this helped
Area of rectangle = Length*width
A = 28 so 28 = 4 * height
height = 28/4 = 7
7+9=16 you can use that cause that is the opposite equation
Area of entire figure = (16+12)(5)(0.5)(2)=140
Area of rectangular glass= 10*12=120
Area of wooden top= 140-120=20ft^2
Well first following pemdas we do 3 to the 2nd power so 3*3 = 9
then we do 9 * 2 = 18
then our problem looks like this 1 + 18 - 5
so 1 +18 = 19
then 19 - 5 = 14 so our answer is 14