The annual expenditure of the us federal government is approximately 444 trillion dollars.
if a one dollar bill is 0.00010.00010, point, 0001 meters thick, how many meters tall would a stack of 444 trillion one dollar bills be?

4 x 10^8 metres.

[0.0001 x (4 x 10^12)

= 4 x 10 ^8

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116