What equation could be used to determine 23% of 122?​

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period. value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Having a hard time understanding this question (see attachment).

Adeposit of 5500 at 6% for 3 years equals