Ahamster wheel has a radius of 4 and 1/2 in. how far will the wheels turn in one revolution

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.