If the temperature today was 7 degrees Celsius, and yesterday it was 13 degrees Celsius cooler, what was the temperature yesterday

Aportion of a line bounded by two points is defined as

Which system of linear inequalities is graphed? can somebody pleasssse

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