Hanna bought 28 roses. She divided them into a number of bunches. Each bunch had 7 roses.

Which equation can be used to calculate the number of bunches of roses Hanna made?

Let the variable b stand for the unknown number of bunches.


A.
28 ÷ b = 7

B.
28b = 7

C.
b ÷ 7 = 28

D.
28 – b = 7