Hello there! :)
Week 3: 6 televisions because one symbol represents 12 televisions, and there's only half of this symbol. One half of 12 is 6.
So the shop sold
televisions in Week
What about Week 4?
We are given that 24 televisions were sold. We draw 2 symbols because 1 symbol represents 12 televisions.
To calculate the number of televisions sold in total, we must add Week 1+Week 2+Week 3+Week 4.
36+12+6+24=
In total,
televisions were sold.
Hope it helps! :)