Describe how you would estimate the square root of a number that is not a perfect square without using a calculator

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.