At Jonathan's school, there are 30 seventh graders participating in the school play. Of the students in the seventh grade, 60% are not participating in the school play. How many seventh graders at Jonathan's school are not participating in the school play?

Answer 1

Out of the 30 seventh graders, 60/100 x 30 = <<60/100*30=18>>18 seventh graders are not participating in the school play. Answer: \boxed{18}.