-a - 8b
If a = 9 and b = -4, then just plug them into the equation.
-(9) - 8(-4)
-9 + 32
23 would be your answer. Hope this helped!
-TTL
Three months<span>, </span><span>two weeks and four days </span>
The economic wealth of Calicut, Mogadishu, and <span>Venice in the 13th century was primarily dependent on their fertile soil, but of course there were other factors as well. </span>