What is the number of hours that separate the top 10% of usage per day from the bottom 90%. Mean = 6.5 and standard deviation = 1.25

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Identify the parent function that can be used to graph the function f(x)=3(x-9)2

Find the measure of the angle indicated in bold