Choose the correct form of the word complicate for this sentence: after spending two hours trouble-shooting the video-projection system, daphne ran into yet another unexpected a) complicate b) complicated c) complicates d) complication

Which historical detail can best clarify a reader’s understanding of the information in the excerpt? immigrant factory workers who spoke the same language were separated from each other at work. immigrant factory workers who spoke the same language were known to talk too much at work. immigrant factory workers had to pay rent for their chairs and the supplies they needed at work. immigrant factory workers were crowded into unsafe buildings with locked doors and fire escapes.

Find the center and the radius of the circle with the equation: x^-2x+y^2+4y+1=0

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.