Multiply 13.5 by 12.1 use regrouping show and explain your answer

Step-by-step explanation:

13.5 * 12.1 =??? this seem difficult to do w/o writing it down

13.5 *10 + 13.5 *2 + 13.5 * 0.1= ???

135 + 27 + 1.35 = 163.35 ... much easier to regroup and multiply  :P

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

if graphs are part of the problem statement, share them.   .