I think the Answer is A.<span>Point estimates are used to make inferences about population parameters</span>
<span>Ok. You would set up the problem like this: 32/x=64/100 and then cross multiply; 3200=64x; divide both sides by 64; x=50. Mary has 50 customers.</span>
(7/8) divided by 200
each card is 0.004375 inches thick
50x513 is 25,650, 25,650x2 is 51,300
