Unit analysis: how many feet in 1 kilometer?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m

Graph the line with the given slope m and y-intercept b. m=-3,b=1