Answer
$P(three~strikes~in~a~row)=0.027$
Work Step by Step
$30$% $=0.3$
$P(strike)=0.3$
Using the Multiplication Rule (see page 282):
$P(three~strikes~in~a~row)=P(strike~1)\times P(strike~2)\times P(strike~3)=0.3\times0.3\times0.3=0.027$