Lea bought 2 shirts for 12.50 each. Multiply the cost of a single shirt by how many shirts Lea bought:
![2 * 12.50 = 25](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ozqukp40i5rke3hc6yhn1g9nlwuyk0prkk.png)
Add this value to the cost of the purse to find the cost of Lea's purchase before taxes:
![25 + 50 = 75](https://img.qammunity.org/2019/formulas/mathematics/middle-school/8jzai7m1bu8cnqp6usf54ugplp7lzg1dcs.png)
Lea spent $75 before taxes.
To apply the tax, convert the sales tax from a percentage to a decimal:
![7 / 100 = 0.07](https://img.qammunity.org/2019/formulas/mathematics/middle-school/qcix651sjn3ii5h5hi93sr85j7azx31uc1.png)
Multiply this decimal by the total cost to find the sales tax:
![0.07 * 75 = 5.25](https://img.qammunity.org/2019/formulas/mathematics/middle-school/3ijcptniokbd9l8ukdhh05dg71bfguz9eo.png)
Add this tax to the cost before taxes:
![75 + 5.25 = 80.25](https://img.qammunity.org/2019/formulas/mathematics/middle-school/o80q8t7zuga3ia1n1w9ym8vh7bbwmsst3q.png)
Lea spent
$80.25 in total.