Store a sells 5 ballpoint pens for $2.45. what is the least number of pens store b must offer for $5.00 to beat store a's price?

a 9
b 10
c 11
d 12

plz anwser

Store A: 2.45 divided by 5 = 0.49. Store A sells 1 pen for $0.49

0.49 * 9 = 4.41

0.49 * 10 = 4.9

0.49 * 11 = 5.39

Store B would have to offer 11 pens for $5 to beat Store A's price.

5 divided by 11 = 0.45

0.45 < 0.49

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

idk

step-by-step explanation:

i don't know