What is the sum of a geometric series of 12 terms that begins with 10 and has a common ratio of 2

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?