Answer:

Step-by-step explanation:

Answer:
its B
Step-by-step explanation:
400+30+8 is how you put 438 in standard form.
Answer:
48%
Step-by-step explanation:
(24/50)2
= 48/100
= 48%
Answer:
4b^-1
Step-by-step explanation:
16a/4 = 4a
4a/a = 4
4/b = 4b^-1