You spend 2 1/2 hours online. you spend 1/5 of that time writing a blog. how long do you spend writing your blog?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.