This year, the year is 2021
First number multiply by 3 for the next number subtract 10 and repeat process
The answer is -30
<span><span><span>(9)</span><span>(2)</span></span>−<span><span>(24)</span><span>(2)</span></span></span><span>=<span>18−<span><span>(24)</span><span>(2)</span></span></span></span><span>=<span>18−48</span></span><span>=<span>−<span>30</span></span></span>