Idk what your answer will be i had it then i lost it sorry
Answer: 
Step-by-step explanation:
As per given , we have
n = 11

Since population standard deviation is missing, so we use t-test.
Critical t-value for 99% confidence :
[using two-tailed t-value table]
Confidence interval :

Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.= 
Answer:
200%
Step-by-step explanation:
If $40 is 100% then multiply it by 3 to get $120
Im on sure but probably 0.75
I a function is even the leading term will have an even exponent. If a function is odd than the leading terms exponent is odd.
an even function has a parabola looking graph, while an odd function has min and max graph