162 - 9 = 153.
d = 153.
Diego is old.
The answer is -10x^3+23x^2-24x+18
ANSWER

to the nearest thousandth.
EXPLANATION
The given irrational number is

We use the calculator to evaluate this to obtain,

To round to the nearest thousandth means we are rounding to 3 decimal places.
The third decimal place is 5.
The next number is 5 so we round up.

The answer is -4,0 4,8 because u would solve for one variable in one of the equations and then substitute the result into the other
Think it's B or A if they want it simplified.