Krystal works at the local jewelry store. She earns a weekly salary of $275 plus a commission of 2.7% on all sales. Her sales for the week total $1,790. How much does Krystal earn this week? Show all work.

Multiply her commission per cent by her total sales to establish the amount she receives in commission, i. e. 2.7% (or 0.027) multiplied by 1,790. This equates to $48.33. Then, add this commission amount to her weekly salary of $275 to achieve her overall weekly earnings, which are $323.33

275 + (.027 * 1790) = $323.33, first convert the percentage into a decimal then you multiply the decimal by the sales week total, and add 275 at the end.