Pls ! this is the second time i have had to post this! pls i will be so grateful!
16 points! i will love you forever lol

So as before

surface area=area of all the sides=
area of base
area of 2 triangles
area of 2 rectangles

area of base=legnth times width=16 times 9=144

area of 2 triangles=2 times area of triangles=2 times 1/2 times base times height=2 times 1/2 times 16 times 6=1 times 16 times 6=96

area of 2 rectangles=2 times area of rectangle=2 times legnth times width=2 times 10 times 9=180

total surface area=base+2 triangles+2 rectangles
total surface area=144+96+180=420

the answer is 420 square inches

the answer is B

Hope i can you!