3/10 -c
2/10-b
9/10- h
7/10-g
1/10-a
<span>0.75 (1/2x) = 60
60/3 is 20, which is 25% of her remaining money,
So her total remaining money is $80.
Then 80 x 2 = 160</span>
<span>To find the margin of error for the mean of a normally distributed
population from a sample, the critical probability,

, is obtained by

where p is the confidence level.
Assuming a
confidence level of 86%, the critical probability is given by

</span>
Answer:
9(5x+y)(5x-y)
Step-by-step explanation: