Answer:
My first thought is it's saying "try to understand" but also understand is two words put together so if it's divided by 2 it's stand under? not sure, sorry
The 11 may represent the price of the magazine if all the magazines at a certain store are $11. Then the s may represent the price of a book because all the books at a bookstore are different prices.
Hope this helps
×2-24+12×=12-15×-1×
×2+12×+15×+1×=12+24
30×/30=36/30
×=36/30
She will need 12 seconds because -20•12=-240