Numbers

We can write

$(987)_{16} = (9 × 16^2) + (8 × 16^1) + (7 × 16^0) = (2439)_{10}$

We know this because we multiply each digit of 987 by 16 raised to the power of a digit starting with 0. 

We multiply 9 with 16^2 and 8 with 16^1 and 7 with 16^0 as a result. 

This gets us our answer of 2439. 

Thanks! :)