Use the dichotomous key to answer the question. Of the following characteristics, which was used to classify insects?.

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Mr. chiu made a dot plot after asking his students a question. based on the dot plot, which statements are correct? check all that apply. eleven students answered mr. chiu's question. twelve students answered mr. chiu's question. three people studied for two hours. three people studied for three hours. everyone who responded studied for at least one hour. four people studied for four or more hours