Answer:
The best estimate for 43x78 is 40x80
Step-by-step explanation:
43 rounded to the nearest ten is 40.
78 rounded to the nearest ten is 80.
The answer to 40x80 is 3200
Answer:

Step-by-step explanation:
![\displaystyle = \frac{x^2(y-2)}{3y} \\\\Put \ x = 3, \ y = -1\\\\= \frac{(3)^2(-1-2)}{3(-1)}\\\\= \frac{9(-3)}{-3} \\\\= 9 \\\\ \rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%20%5Cfrac%7Bx%5E2%28y-2%29%7D%7B3y%7D%20%5C%5C%5C%5CPut%20%5C%20x%20%3D%203%2C%20%5C%20y%20%3D%20-1%5C%5C%5C%5C%3D%20%5Cfrac%7B%283%29%5E2%28-1-2%29%7D%7B3%28-1%29%7D%5C%5C%5C%5C%3D%20%5Cfrac%7B9%28-3%29%7D%7B-3%7D%20%5C%5C%5C%5C%3D%209%20%5C%5C%5C%5C%20%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3><h3>Peace!</h3>
Statistics on stepfamilies are difficult to attain, and the statistics we do have are probably underestimated.
Statistics is the discipline that worries the collection, organization, analysis, interpretation, and presentation of statistics. In applying the information to a scientific, industrial, or social problem, it is traditional, to begin with, a statistical populace or a statistical version to be studied.
Statistics are carried out in marketing to identify marketplace traits and to measure and evaluate the capacity and achievement of advertising packages. The secret to successful advertising is to perceive the goal marketplace accurately and to use powerful advertising communications channels and strategies to attain it.
A stepfamily is a circle of relatives in which at least one discern has children that aren't biologically associated with their partner. both discern, or each may additionally have kids from previous relationships or marriages.
Learn more about Statistics here: brainly.com/question/12150562
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Pretty sure this is wrong but I got,
$77,184,751.5431
Yes, it will always be a rational number. I'll expound on this by defining what a rational number is. It is any number that can be expressed as a fraction. Otherwise, it is called an irrational number with a non-terminating decimal expansion. So, although 1/3 has a non-terminating decimal expansion because it is equal to 0.33333333...., it is still a rational number because it can be expressed into a fraction.