In what time will $400 amount to $512 if the simple interest is 14%? (find out how much interest the made first.)

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

In the next 10 month, colin wants to save $900 for his vacation. he plans to save $75 each of the first 8 months. how much must he save each of the last 2 months in order to meet his goal if he saves the same amount each month ?

Find the length cu. the triangles are similiar.