Which strategy is the most appropriate strategy to solve (x−1) 2 =9 ?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?