A salesperson earns a $13%$13% commission on their sales each week. In one week, their sales amounted to $\$640$$640.
First, find $10%$10% of their total sales.
Now find $3%$3% of their total sales. Leave your answer to two decimal places.
Hence, find the total commission they made this week. Write your answer to two decimal places.
Use ratio and rate reasoning to solve real-world and mathematical problems, e.g. By reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
Find a percent of a quantity as a rate per 100 (e.g. 30% Of a quantity means 30/100 times the quantity); solve problems involving finding the whole given a part and the percent.