Since you know that when x = 2, y = 8, when you replace x with xb:
<span>8=(xb<span>)3</span></span>
x has been replaced by xb, so xb must equal 2
and then substituting in 0.5 for x, you can solve for b
<span><span>0.5b=2</span></span>
The mode of the following data values would be 21. mode is usually a number that is repeated more than once, and in this case, 21 appears twice. your answer is c