Find the sum of the interior angles of a decagon

A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school. The researcher uses years of experience to predict salary.

Calculate the area of a square with sides equal to 8 cm if the dimensions are tripled? 64 cm 128 cm 512 cm 576 cm

Whos the First presdent of the united states

Can we conclude that x - 4 is a factor of the polynomial 4x^3-20x^2+18x-12? How do you know?

If the area of a right triangle is 10 cm2 and one of the legs is 4 cm, find the length of the other leg. A) 2.5 cm B) 5 cm C) 10 cm D) 20 cm

Given that x and y are real numbers, find the value of x and y if (x+y) + (x-y) i=7+3i

Cheryl and her friends buy a pizza for $15.00 plus a delivery charge of d dollars. If the delivery charge is $2.50 what is the total cost? a. $17.50 c. $12.50 b. $16.00 d. $184

Ashley can ride her bicycle 15 miles in 2 hours. There are 60 minutes in 1 hour, and there are 1,760 yards in 1 mile. How many yards does Ashley travel?

Ellen's new balance on her credit card statement was 332.91. how much is the minimum payment if it must be 15 percent if the balance? 70.32 49.94 52.29

What is 33 divided 58?