Jillian ran 40 miles in one week. her friend lacey ran the distance that jillian ran. how many miles did lacey run? express your answer in simplest form.

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Use the graph of the sine function y=2sinθ shown below

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?