what is 80x547568-868+21

Answer 1

That's a little jumbled, but here is what I think,

80x547568= 43,805,440.

43,805,440-868=43,804,572
43,804,572+21= 43,804,593.

Answer 2

Try doing the problem by yourself and getting the answer. Math can be very helpful at times, so it's good to practice problems like this and learn how to check your work in questions like this, as well as get to the answer.