I searched it up and it is a error found when downloading on a computer.
Answer:
140 I THINK
Step-by-step explanation:
Surface area is the sum of all the areas of this 3d shape.
triangles- (length*width) / 2
quadrilaterals- length*width
17*2= 34
17*1=17
17*5= 85
1*2= 2
1*2= 2
85+17+34+2+2= 140

The denominator can't be equal to 0, so

Now we can solve the equation

Answer: x=16
The answer should be 1,850
When you put your 2 rounded ends together you get a perfect circle so let's find the circumference around that circle first.

which of course gives us a circumference of

. Now add in 300 + 300 to get 600+140pi, and when you multiply 400 times pi and add in the 600 you get 1039.8, which is your 1040 above.