How do you know when a square root is completely simplified?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

Someone which statements are true? check all that apply.

Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?