When do you need to use two number lines to compare two fractions

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Drag each tile into the correct box. not all tiles will be used. find the tables with unit rates greater than the unit rate in the graph. then tenge these tables in order from least to greatest unit rate