By using your phone to take pictures you are not only saving money by not buying a camera but you also always have your phone on hand, a camera , not so much. By getting the right angles at the right time of day, it works just as good as a camera.
Umm...I can't help you with the video example one, but the answer to number 1 would be context clues. Inferring things is all about taking what you know based on the context and basically making an educated guess. Number 3 would be true based on what I already said.
Indefinite pronouns can either be in singular form or plural form depending on its context. Although some plurals are independent in reference to antecedents, pronouns either singular or plural must agree with the antecedents.
Answer: do you still need help? I’m not totally confident but I know the answer!
Explanation: