Answer:
7 more students need to sign up.
Step-by-step explanation:
if you subtract the number of students needed by the number of students you have, you get 7 (30-23)
Answer:
23 + x ≥ 30= at least 7 students must sign up for the trip.
Step-by-step explanation:
7 because you need 30 and already have 23 you subtract 30-23=7