95% of the students will score between 400 and 600, because you use a bell shaped graph and normal distribution to put the variables in the bottom. The graph i attached should help. So the answer is 95% of the students will score between 400 and 600. Hope this helped, and by the way I am a girl, not a poly whatever guy like that person said lol.
Answer:
~ -4x+4y+10
Explanation:
~ We have to collect like terms such as all the x’s, y and the normal numbers.
~ Then add like terms together: x-5x, 4y plus nothing, 3+7
~ After adding them, you should get -4x+4y+10.
Answer: 1.3 is her interest rate hopefully I'm correct on this
we have
we know that
so
two solutions
<u>first solution </u>
the first solution is the interval---------> (-1,∞)
<u>second solution</u>
the second solution is the interval---------> (-∞,-1)
therefore
the solution is all real numbers except the number 
the answer in the attached figure
