It takes me for hours to rake the leaves of five city blocks how long does it take me to rake the leaves off eight city blocks

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]