Whats 2+2 i have no clue jkjk

Only people in ap world history can can someone give me a question and a statement to present to the class about chapter 15,16,or17

Love, which can’t be observed or measured directly, is an example of psychological construct

Let r(t) represent the rate, in square feet per minute, at which a groundskeeper is mowing a lawn t minutes after 3 p.m. what expression represents the area, in square feet, of the lawn that is mowed between 3 p.m. and 5 p.m.?