Answer:
85
Step-by-step explanation:
80, 80, 81, 85, 86, 89, 90
Median: 85
Sorted Data Set: 80, 80, 81, 85, 86, 89, 90
180 hours
24 hrs in a day
5/6 of 24 is 20 and multiply it by 9 because there are 9 days
=180
a) x=0, x=-10, x=11
Just find the x- coordinates for when f(x) intersects g(x).