Should be option 1. i cant really gv an explanation tho sry :/
For this case we have that the total minutes spent in yoga classes last week was 165.
Subtracting the 45 minutes of the Saturday day we have:

Those 120 minutes were distributed in the weekly yoga classes
where each lasted 30 minutes.

So, 4 week yoga classes were held
ANswer:
4 week yoga classes were held
(12 x 2) - 5 because twice as many means to multiply by 2. fewer means to subtract.
Answer:
sry i cant help you bcoz i havent read this type of exercise yet