Answer:
class width is 5
Step-by-step explanation:
21 students
28÷4=7
3×7=21
5 miles per hour
3¾ ÷ ¾ =
15/4 ÷ ¾ =
15/4 x 4/3 =
15/3 = 5
-2
-5n + 18
where n is the number of the term
i have no idea
