Susan made 4 uniform annual deposits of $1800 in a savings account that earned an interest rate of 10% per year. her last deposit was made 7 years ago. what is the future value of her savings 13 years from now, if she leaves the account untouched?

The area of a circle is equal to 1 dm². find the radius of the circle.

The triangles are similar. what is the value of x? enter your answer in the box.

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?