What is the sum of the geometric series 20 + 21 + 22 + 23 + 24 + ... + 29?

A square pyramid is shown below: A square pyramid is shown. The sides of the square base are labeled 0.9 foot. The height of one of the triangular sides is labeled 4 feet. What is the surface area of the pyramid? 8.01 square feet 2.61 square feet 4.

How do I️ simplify the exponents? X^-4/x^8

314 stones for a cost of 2,512.00, how many stones are needed is the cost is 1,584.00

Factor completely 3x^2 - 11x + 8.

What is the graph of the equation x=-3

Paul can type 60 words per minute and Jennifer can type 80 words per minute. How does Paul's typing speed compare to Jennifer's? A. Paul can type 1 / 3 as fast as Jennifer. B. Paul can type 3 / 4 as fast as Jennifer. C.

What is the center of the following circle? (x + 7) 2 + (y - 9) 2 = 16

ella has painting class every 2 weeks. Norah has pottery class every 5 weeks. ella and norah met at the art building for class this week. How many weeks will it be until they see each other again

The original function is y=1/2x-1. the slope is changed to 2

A rectangular room is 2 times as long as it is wide, and its perimeter is 36 meters. Find the width of the room.