What is the positive solution to the equation 0=-x^2+2x+1?

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?