Question 629231
If you spent more time thinking about the problem than wasting time with fill in the blanks, you might be able to do your own homework.
(86+92+x)/3>=90
(86+92+x)>=270
178+x>=270
x>=92
another way to look at it.
86 misses 90 by 4 (-4)
92 is pass 90 by 2 (+2)
+2-4=-2
You have to make up 2 points so add them to 90
90+2=92 minimum.