which of the following describes the impact the dred scott v. sanford case had on slavery and enslaved persons?

Your data will you choose that you can use in your planning. a. evidence-based practices b. strategies others have used c. new and innovative strategies d. strategies recommended by family members

Certain gases in air are important natural resources that are used in welding. two of these gases are a. oxygen and argon b. hydrogen and fluorine c. chlorine and sulfur dioxide d. nitrogen and carbon dioxide

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