The school organized a visit to the art exhibition. 15 teachers participated, and the number of students participating was 29 times that of the teachers. How many teachers and students visited the art exhibition?
学校组织参观画展，教师有15人参加，学生参加人数是教师的29倍，参观画展的师生共有多少人？
<gadget id="calculator">15 * 29</gadget>
<output>435</output>

<gadget id="calculator">435 + 15</gadget>
<output>450</output>

<result>450</result>