50 points to the correct answer asap

what is the volume of a cylinder with a height of 10 in. and a radius of 5 in.? use 3.14 to approximate π to calculate the approximate answer.

What expression is equivalent to 1/2(2+3x-6)

Can someone me and plz do the problem

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.