In order for a class trip to be scheduled, at least 30 students must sign up. So far, 23 students have signed up. Write and solve an inequality to find the least number of students that sign up in order for the class trip to be scheduled.

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"