I believe it is a! hope this helps :-)
Answer:
Each student earned $16.27.
Step-by-step explanation:
48.81 / 3 = 16.27
Answer:
A.
Step-by-step explanation:
< means open circles
x-21<3 x≥21
-x+21<3 x<21
18<x<21 and 21≤x24
so the union of will be 18<x<24