Take 7 % turn into decial then dived
Add up the total for the shirt jeans and watch. Then multiply it by 0.07 then add that to your original total of the items to get your answer.
35 + 40 + 50= 125$
The total sales tax is 7%
We can put this into decimal form 7/100= 0.07
Because we want to just add 7% of the value back on we can also add 1 to that number
125 x 1.07 = 133.75