Question 3 (1 point) The town is hosting a movie night at the fire hall to kick off summer break. It will cost the town $300 to rent the fire hall and $2.50 per person. They will sell tickets for $5.00 per person. Use the equation P = 5n - (2.5n + 300) to determind how many tickets the town needs to sell to make $450.​

What is the value of x when x + 7 = 21?

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.

Find the arc length of the semicircle. 7the grade