Question

If b = 5, then 4 1 · 4 b is equal to?

Answer 1

If b=5, then 41•4b=?
41•4b
Substitute b with 5, because we know that b will gonna be equal to 5
41•4(5)
=41•20
=820. As a result, 41•4b=820 if b=5. Hope it help!