How do you write 81.8 in scientific notation?

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Which number line correctly shows 0.8 + 0.3?

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second