SO what's the answer o_o....

You fail. If that's for a college math class it is pretty basic. Just follow the parenthesis and apply the operators in their normal order of precedence. You only used five operators, and you ended up with the mathematical equivalent of a ridiculously long run-on sentence that gets you no where. Or 749 999 995 509.

Yer so funny.

This is for college?

this is for children with graphing calculators

10+2-5(54÷3(2*5^2))+3*10^10(29-4)+-(-(-3))

10+2 is 12

12-5(54÷3(2*5^2))+3*10^10(29-4)+-(-(-3))

3(2*5^2) is 3(50) or simply 150

12-5(54÷150)+3*10^10(29-4)+-(-(-3))

5(54÷150) is 5(.36) or simply 1.8

12-1.8+3*10^10(29-4)+-(-(-3))

12-1.8 is 10.2

10.2+3*10^10(29-4)+-(-(-3))

29-4 is 25, but can be immediately multiplied by the 3, so.. 75

10.2+75*10^10+-(-(-3))

+-(-(-3)) is simply -3, and can be subtracted from 10.2, so... 7.2

7.2+75*10^10

75*10^10 is 750,000,000,000

7.2+750,000,000,000

750,000,000,007.2

Notice that, although I solved different bits of the equation before resolving the innermost paranthesis, the Order of Operations was preserved throughout.

Errors in your answer:

1) (54÷3(50)) is 54÷(3*50)=.36, otherwise it would need to be written (54÷3)(2*5^2).

2) 10^10 is 10,000,000,000, not 100 (that's only 10*10)

Why yes, my degree /is/ in Math, why do you ask?

4492.5

You call this tough? Throw in some sigma notation and imaginary numbers if you're going for gold. The answer is 7.499999955E11. Sorry if I sound a bit cocky, but I love math.

Please do, because I swear I have it perfect.

749999995509

COCOPOPS!

Yes, but you do it, your homework, not mine.

In that case, what is the first person singular doing in the question?