The circumference of a circle is 18π in. What is the area, in square inches? Express your answer in terms of π

How do you find the area of a triangle

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?